Hello, this is Gomyeong. Today, I would like to talk about production technology. Many engineering graduates end up working in the field of production technology without really understanding the role and the problems it entails. I myself didn't know what production technology was and failed an interview once because of that. So, let's take a look at production technology together. Production technology is a position present in every manufacturing line. Therefore, you can find it in places like LG Chem, Samsung Electronics, of course, in automobile companies like Hyundai, Kia, and parts suppliers like Mobis. In essence, in all industries with production lines, you will find various production technology positions. In addition, there are positions in industries like airplane engines, aerospace, and defense contractors.

Companies related to ana could all have been created, and not only this, but you can think that almost every factory line where there is an AI has this. First, let me briefly explain what production technology is. Oh, and before that, the reason I do this is for you to remove various unnecessary words here. It would be good to use professional terms in cover letters or interviews, such as job descriptions or job-wanteds. If I mention those, you can take them out or use them in your cover letter, and it could help you get a job or earn money, or you can add a word or two at home. And if you feel lacking in your life, just grab one or two things properly, and it's best to search on Google directly and delve deeper. First of all, to briefly explain what production technology is, it involves troubleshooting and production capacity on the production line.

Have you heard of My? We perform conversion tasks to increase efficiency. Just by doing the tasks. When you see it, I will mark unfamiliar words in iron color like this, with lines. So, what is line modification in simple terms? When modifying the line, think about how to change it compared to the current method to make it easier for workers and shorten the cycle time. Job cycle time is also important. Then, troubleshooting. In the end, simply put, it is a task for increasing productivity. The most important thing is productivity enhancement. Let's take a look at these red things. Troubleshooting. What is troubleshooting? In terms of terminology, mainly related to IT, to put it simply, it deals with issues that arise in the system.

Diagnosing complex issues comprehensively can be a lonely task, and in some places, it's also called defective processing. Defective processing is also used to mean quickly dealing with defects. And, well, Kaizen ultimately refers to improving productivity. So, increasing productivity through Kaizen means building more factories or expanding facilities. Therefore, production engineering professionals need to always consider factors such as cycle time, process, and defect rate. In the case of cycle time, aside from the upper cycle time, there is another term mainly used in this industry, which is the cycle time T. It's not the mid-time but the T time. I have a simplified picture here to show you.

How do you do it? Simply put, this thing called Takt Time is the time required to produce one product. If you interpret it, it means the available working time is the production time, so the necessary production quantity is divided by the available working time, which is the production time per unit. Don't get too caught up in the complexity. Just think of it as the time needed to produce one product. Also, Cycle Time, since it feels a bit confusing, is the time it takes to complete one unit in a unit process. Simply put, from the raw material input to the completion, all the time taken is considered the Cycle Time. So, for example, when we make car parts, from the moment the raw material is input until the finished part is produced, all the time taken is called the Cycle Time. The production technology task itself is to improve this Cycle Time.

By reducing the cycle time, ultimately, it means that more parts can be produced. In the end, it increases productivity. So, you should continue to consider this cycle time. Lead time and cycle time are terms that come up often. Simply put, lead time is the time from order receipt to customer delivery. This concept includes the idea of delivery as well. If we interpret what's written here, lead time can be seen as the time from order receipt to delivery. In my view, this cycle time seems to be the most important. Additionally, as I mentioned earlier, productivity improvement is crucial in production technology. Now, there is another important aspect coming up, which is QC. Optimization of QC, which stands for quality control.

Custom language is cost, cost, cost, and delivery. So, in Korean terms, you can think of it as quality, cost, something like lead time. Now, let's analyze this once and take a look at the terms. First of all, in terms of quality, the concept of a store OS comes out. Through 3J and 5S, I will explain this a bit later. A clean site, and it's easier to write it line by line, and through this, we go into visible management. Actually, it's nothing special. Just creating a clean environment and visually managing it. In fact, in dangerous places like iron or steel companies, there is something called visual confirmation. So, when crossing the railroad, you squeeze the left and right with your hands to visually check if there is a train or not. Frankly, you might think it's unnecessary to do that. You might think that just looking at it is enough, but if you don't do this action, it's like...

Due to a tendency not to watch habitually, it could lead to a major accident. So, through this 3-5S, visible management is implemented. This kind of conversation will now become one of the aspects of quality assurance. Also, average laughter and standardization of production will be looked into later. Standardization and maintenance will be included, and secondly, the concept of 원과 악보 is always about efficiency. The concept of 3 full 3 empty means eliminating unnecessary things. Now, reducing unnecessary things compared to raw materials and auxiliary materials is important because the cost of these materials is higher than expected. The cost of accumulating inventory is high because it requires space and management. Managing these costs is also considered as part of production technology tasks.

Different companies have different production bases, so it's not easy to standardize everything because the concepts vary slightly by industry. Also, finally, it's about delivery. Delivery deadlines are also affected by the average and average generation, and production is influenced by just-in-time games. Inventory management by JIT flows smoothly. These are all terms with meanings. However, production efficiency seems to be the most important. And shortening the process is what I mentioned earlier. It reduces cycle time and improves productivity. In other words, if you see it as something that reduces cycle time and improves productivity, it's about module and layout improvements. There are many unfamiliar words coming up. If I happen to forget to explain, please search once because there are many blogs that explain well. And there will be improvements in the problems that occur in the process.

Well, then, let's first look at 3S 5S here. 3S is a term used in almost all processes, but it's a bit old-fashioned and cliché, so some people may not think it's important. However, it is definitely necessary. Especially in manufacturing plants, 3S 5S ultimately aims to prevent accidents and injuries by creating a clean environment. The 3S means keeping necessary items easy to find and easy to use, which is a basic and obvious concept. The three 정 refer to genuine, quantity, and location. So, that's why it's called 3S. And now, moving on to 5S in English, it seems to show five things to do. First of all, it's sorting. It means distinguishing between necessary and unnecessary items. What could be considered unnecessary? For example, excessive management costs, unnecessary expenses, additional quality issues leading to waste disposal, and so on.

Honestly, there may not be many interviewers at the company who know very detailed information about 3S and 5S. Knowing is good, right? Still, the first is to organize, and the second is the degree. The degree is not something that can be readily used by anyone because it takes time to find. Ultimately, as I've been saying, the key is to reduce time. If inventory management is difficult and you can't find things, additional points may be needed. These are things that may not come to mind easily if you haven't experienced the industry firsthand. Also, cleaning is not just about wiping away the trash; it's about keeping it clean.

Doing it in a clean state is important not just for the simple reason of being clean, but because it can be the cause of defects. So, I think it is considered somewhat important. Besides quantity and causes, there are also equipment failures, which are quite significant. Ultimately, when it comes to cleaning, do you know the concept of chips? For example, after processing, there are residues that come out, like what we get from machines such as conveyors, MCTs, and mills. Of course, nowadays, most of them are automatic, so we would use MCTs, but there are still a lot of waste products coming out from there. Therefore, if the waste products are not cleaned properly, they will accumulate, eventually becoming the cause of defects and equipment failures. Understanding it in that way might make it easier to understand. In the end, you can think that safety accidents can also happen. Cleanliness, well, it's all similar, isn't it?

Thorough cleaning and organizing. If I were to talk about it, there are many time-consuming aspects in improving unreasonable points or quality issues. The fifth one is habituation, to be able to correctly execute predetermined things as prescribed. So, ultimately, explaining the 3R 5S, through proper arrangement, proper amount, and proper position, habituation is about fully acquiring it into your body through habits. This means that through organizing, cleaning, and maintaining cleanliness, I will reduce management costs, prevent accidents through cleaning, and ensure that accidents do not occur, and through cleanliness, I will ensure that quality issues are not overlooked. By adopting all of these into my body and through habituation, I aim to achieve this kind of feeling. Although it may sound a bit similar in the end to the 3R 5S, since it is called the 3R 5S, these words and terms are ultimately used.

Please remember and try to use it in interviews or cover letters. And there is one more thing that came up earlier. It's about standardization production, average production, and leveling production. It's not a very critical concept, but in interviews, some may not consider it important. Standardization production means initially approaching it in a dictionary sense. It is to standardize the daily production to achieve almost the same quantity of production each day. So, it's about leveling the daily production quantity, not decreasing, of course, it would be great if it increases. But since increasing is difficult, the goal is to prevent a decrease. Aligning the daily output to be almost the same is called average production. Standardization production, on the other hand, has slightly different principles.

For example, in all workplaces, the concept of average operation includes personnel, social materials, and all resources on average, contributing to harmony and revival. Therefore, it means that all resources are appropriately mixed and adjusted to produce products that aim for uniform revival. It is about achieving the average quantity and type of production. In other words, it is considered to harmonize production revival. So, consider the concept of 2 평준화 생산 as harmonizing production revival. Let's talk a bit more about the 4평준화 process. We won't delve too deep because it's not considered very important. You will learn everything you need to know, so understanding the basic concepts should be enough. I will briefly explain the concept of 평준화 생산 and average production. Let's move on to improving production technology a little by improving processes as a sign of improving the factory.

Let's look at it. Eventually, the concept of inclusion comes up, and until a problem is identified, ultimately, finding the problem is about solving the problem. If you consider the production base as work, you should observe inclusion. Additionally, the term wona comes up. Up to my understanding, it's not that important, but 4m is considered important. You should observe it, and what is 4i? Simply put, it refers to managing and assigning production line workers, which can be considered as one of the tasks of production technology. And of course, machine equipment troubleshooting, defect handling, etc., are tasks related to production technology. Also, MS Word processing, factory methods, how to set them up, and what materials should be used or not, can also be part of production technology. [MUSIC] And in the case of metalworkers, for example, managing material changes, quality issues, or design changes.

There would be things like this, so you can think of it as the work of production technology based on this 4m principle. Additionally, if we continue the discussion, in order to improve processes, there should be no waste. Waste ultimately means that the effect is not beneficial as much as it is executed. To eliminate waste, unnecessary, unreasonable, and illogical things need to be removed. This is the concept of 3M and 3S, almost like the concept of Kaizen. When we honestly think about it, when we study management or mechanical engineering at school, we don't actually use these concepts directly in our work, right? But in order to explain that, what kind of words are needed? Those are things like 3M, 3S, and so on. Additionally, there is a method for calculating waste when improving, first, we need to eliminate overproduction.

To do this, there are things like averaging, standardizing production, reducing setup time, etc. We are talking a bit incoherently right now, but let me connect it once and explain. Through mixed production using hybrid production, we can solve the problem of the seven wastes, such as overproduction, which is a representative cause of waste. Additionally, as I mentioned earlier, there is a significant amount of money going into inventory coming out of inventory. Therefore, this will also contribute to balancing production. Improvements in transportation, layout, and flow production can be made. Defective manufacturing, for example, improving proofing, which I will explain in a moment, is about solving internal problems. Proper process design and the importance of automation are crucial.

So, we have five that came out, four or five came out, and now one more is at 102 waiting. When I say 102, I mean literally reducing the preparation and replacement time. And finally, there is an action called 'dongjak.' If there is a bit of atmosphere in front of me, you can think of it as an action that does not create added value. For example, metaphors, shapes, layouts that have recently come out, layouts are important words that must be considered in terms of production flow, production process in manufacturing factories, and whatnot, logistics, personnel, and so on. Let's take a look at the terms that came out earlier. Layout came out, right? Layout is placing equipment considering the flow of manufacturing processes, production, workability, logistics, personnel, and so on. It's a very important word in production technology. It's essential to place the layout without which production technology cannot exist. And there was something called 'pull-proof.' Pull-proof is a concept that prevents or prevents errors that occur among the top 10 mistakes.

By informing and taking measures to prevent accidents, ultimately, it is important to prevent disruptions. In the end, whether it leads to an accident or a machine stops its operation, the interruption ultimately leads to a decrease in productivity. Consequently, not only does it cause damage to the company but also creates issues with productivity. Therefore, preventing accidents is crucial. That's why the concept of full process safety has emerged, and it is indeed an important concept. Now, let's move on to a bit of production technology, specifically in the automotive sector. Production technology is not limited to just the automotive industry. In the automotive sector, production technology is broadly divided into processing and assembly. What kind of processes are involved in processing? When materials such as aluminum castings or components enter the factory, they undergo processing within the factory.

Express the feeling. The processing line will be set up with 6 King Law, and on the 6th floor, there is a robot I mentioned earlier, called MCT, which stands for Machining Center. For those preparing in the car, it might be more efficient to search for what it looks like and match it with a picture. There are things like this, separating it into machine tools for processing. Ultimately, doing the processing is not something done by oneself; it is about managing it. In the end, both MC and MCT can be considered automated devices. With the use of cams, once the cam-analyzed part is input, the global MCT automatically processes it. And since processing has been done, assembly will follow. Oh, especially in processing, let me explain a bit more. When you want to process, I'm talking about chips. Chips are basically aluminum scraps. As I mentioned earlier, these are the by-products that come out when processing.

If you think of it as giving, these scraps can eventually become a cause of defects and even lead to injuries. If these chips are not removed and the assembly is carried out in this state, damage occurs due to the rubber that allows the formation of pressure. It may sound a bit absurd, but let me tell you a related story. This can lead to fatal defects, so chip removal is crucial. By using these methods, you can think of answers related to interviews on your own or come up with creative solutions. It would be nice if you could think creatively. When it comes to interviews, assembly is also important. After processing is completed, you can consider it as post-processing assembly. Assembly is now automated. It is automatically composed and only the loading, unloading, and other parts are done by workers. The rest is handled by the mentioned six-layer conveyor belt, rotary index, hydraulic cylinder, U-barrier, various testers, and so on.

There may be a vacuum leak or an air leak, and I heard that it is very important to learn PLC basics when it comes to the production technology of this car these days. By learning this in advance, you can definitely stand out. That's why, in a case like this, I introduced a website where you can get a semiconductor process technology certificate from Samsung Electronics, Samsung Semiconductor, in the past. There may be similar concepts there as well. Shall we look it up together? I will find the product number. First, if you go to the online lifelong education center of Korea University of Technology and Education, you will see this. It's the online lifelong education center of Korea University of Technology and Education. Let me write down about PLC. So, what are the basics of PLC? There are many things like PLC control, PLC engineering systems, automatic control systems, and fault diagnosis. If you look closely, there are also things labeled as regular, right?

I will take a regular class once, and then issue a certificate. Of course, you have to study. You have to study because you can utilize it in interviews. It's important to do well in classes, but it's very easy to pass this online class. That's why it's more important for you to appeal. It's crucial for those preparing for production technology to know the PLC concept because you will learn it once you enter. Moreover, in some places, they prefer those who know how to operate forklifts. There is a lot of forklift usage. Since the production technology job involves various tasks, it is said that driving a forklift is often required. So, in production technology, in actual work, what is the role of a forklift? Let me briefly explain. First, there is a design review.

In terms of design, in the new car development stage, you can consider it as a drawing review. In this review, various modifications or team leader reviews are requested from the design team. Also, there will be reviews on aspects like the type of vehicle. Secondly, in terms of inclusive development, yes, it will go into production. Here, we have what we call a pilot file. This involves testing before mass production. It includes sample production before mass production. Now, what else is there? Yes, there are more. There will also be gratitude beams and error proofing. Error proofing is a process of detecting and preventing defects in advance to ensure that defects do not leak out by automatically verifying the amount on the line. These are devices for error proofing. The effectiveness review of the error proofing will be conducted here.

Next, we will move on to the third part of the 4M management I mentioned earlier. It includes things like improvement of the target, production, etc. Additionally, there are tasks such as investigation of loss causes, summarizing performance, and investigating work processes. Fourthly, various audits and responses, as well as quality control and customer complaint handling, will be covered. Lastly, there is benchmarking, which involves benchmarking products from other companies, as it is a common practice to benchmark similar products from rival companies. Lastly, quality assurance and customer complaint handling will be included. Although there is much more to discuss in this area, I will provide only this level of explanation as it does not delve into overly technical details.

4. Furthermore, production technology can be divided not simply into processing and assembly, but now into preliminary production technology and mass production technology. In other words, equipment technology can be divided into preliminary technology and mass production technology. Here, some new terms come up again. In preliminary technology, before new model development and mass production, ST analysis and lobby inspections are included. The importance of LOB is very important, so I will explain this part again. In other words, it is the task of making mass production possible, which is directly preliminary production technology. It is important to minimize losses that occur during testing by reviewing potential issues before mass production is confirmed, in other words, reducing waste and preventing an increase in quantity. Therefore, in the development stage, sample production and management are carried out. Just as I mentioned earlier about samples.

It's like the concept of a pilot, so through 2st analysis or lob, we proceed with rational process design tasks through st analysis or error b. How should we explain this error b? Error b is ultimately, hold on a moment, it's called a line of balance, or liner balance. In Mobis, they call it balancing of the line. My colleague said that change balance, cognitive balance, and depression balance. When I mentioned liner balance, my colleague asked if it was a debate within the line. Isn't this about producing products in the factory, repetitive work, right? This technique shows the progress over time in repetitive tasks when producing products in the factory, isn't it? Ultimately, it's a statistical expression shown in a graph, now expressed in percentages, aiming to achieve high productivity.

I can explain the purpose of unchanging manufacturing as follows: by lobbying continuously, conducting fair design work through lobbying, and proceeding with public landscape water, it is the starting point of technological precedence. Ultimately, in equipment technology, it comes down to life and death, as I mentioned earlier. Equipment technology involves entering productivity improvement and facility enhancement. The reason I explained this is that in some companies, there are cases where this is not separate, such as cases where advanced production technology or something like that is not separate. Therefore, I am explaining exactly what precedes what in such a job, what advanced production technology is, and what it is doing separately. This is to inform you separately. This is an operation that has been improved to make mass production more efficient. It is about securing the optimal investment efficiency and ensuring investment flow, new factory facilities, and layout improvements.

What we call a proposal is suggesting a layout, and in the process of designing and creating the production line to enhance productivity, activities are ultimately aimed at improving productivity, right? Technical skills are the most important task in shipbuilding, so in the case of expanding such a factory, it plays a role in maximizing expansion. You can think of it as maximizing the role of the expansion team for factory expansion. And as I mentioned before, through optimal investment, we maximize the equipment and space utilization for the new factory. Let's summarize what has been said earlier. Yes, ensuring optimal investment efficiency and proposing a layout to maximize equipment and space utilization for the new factory. And troubleshooting, as I mentioned, ensures stable production when equipment troubles occur, allowing mass production to proceed smoothly. Usually, people think that production technology is only for mechanical or electrical engineers.

Those people eventually use a lot of semiconductor equipment technology. Rather than Samsung Electronics' equipment technology, it can be seen as closer to process technology, and ultimately, production technology is a combination of process technology and equipment technology. When you look at the job description for this equipment technology, there are concepts of PM and BM. Some of you may know PM. PM stands for Preventive Maintenance, and BM is Business Management. PM is ultimately about preventive maintenance in advance, so by maintaining the equipment well in advance, you prevent issues. Therefore, it enhances equipment operation performance, prevents defects and accidents, continuously increases operation rates, and maintains productivity. That's why it can be said that PM is a way to prevent damage. For instance, when there is an increase in production volume or equipment failure.

Then, how quickly can we improve this and put it back into operation quickly? And through equipment failure analysis, how will we proceed with improvements? So, focusing more on tasks after the incident and preventing similar incidents from happening can be seen as the key. It would be good to know the concept of damage versus benefit, so let me introduce it. Personally, I am not in the field of industry, but I have learned about equipment overall efficiency from industrial engineering. Some of you may not have studied this, but I have used it in interviews. In terms of equipment, there are factors such as uptime and performance rate. Uptime ultimately aims to improve the overall efficiency of the equipment by extending the replacement period of parts, right?

It's about raising and what kind of performance operating rate is there? Ultimately, in the case of performance, it's about increasing performance. By improving performance, it's literally about improving overall facilities. If I may add something besides what I mentioned earlier, in terms of opportunities, there is a ranking cycle, isn't there? Personally, I connected this. In the case of a ranking cycle, sometimes it goes into a standby cycle and sometimes into a playback cycle, controlling the power cycle time operating rate to 5. Because eventually, in the case of heat, it prevents corrosion in the pipeline by giving heat back to the steam, allowing the blinds to be used longer. Therefore, it increases the time of parts and freezing. I thought about it this way. And in the case of two standby cycles, it ultimately improves performance. It's about enhancing performance, which is why the performance and performance operating rate are improved.

I explained flying high. Honestly, this is not a particularly bizarre story, but these days, don't we like fusion? And when working on projects with others, what did I learn? When I talked about things like this, which are related to actual work and my major, and also somewhat related to the other person's major, I explained in this way when I wanted to explain it well. I'm not saying you must use this or anything, but I'm just suggesting it as a way to utilize it. It's also good to see it from a different major's perspective by leaving out the parts needed in a different major. Yes, now let me summarize. It's a bit difficult to summarize everything at once since I talked about many things earlier. What about production technology? The ultimate goal is to develop products that can be produced stably, inexpensively, and quickly.

Here, we are now looking for and designing infrastructure that can efficiently produce various products in a factory. It can also be said to complete a career by optimizing the line. Ultimately, it is about optimizing the line to quickly produce and pursue cost reduction in terms of time and money. This is important because it ultimately benefits the company's profit by pursuing cost reduction and productivity improvement, which in turn helps the company's development. So, please approach the interview with the mindset that you are not just an employee of our company. To do this, you need to be familiar with many terms such as troubleshooting, 3Lob, 5S, Lean Production, and various other terms. You don't need to be familiar with all of them, just familiarize yourself with a few key terms, such as those you have used in your resume or that you are not very familiar with. If you write very professionally, that's another story.

Because it can cause discomfort and even lead to resistance, isn't it better to mention things you have done, like projects or actual experiences, such as working part-time on a factory production line or having interned somewhere, or even visiting a machine exhibition, while writing your self-introduction, mixing them in little by little? I recommend this approach. Also, recently, there is a production method called cell production on the production line. Let me briefly explain this and finish. Generally, when you think of a production line, there is a conveyor belt, and work is done here and there, like what tasks are done and what is done in foreign countries. These things have many disadvantages. For example, if an exit is not made for 2 minutes, there will be a huge disruption. Or if you cannot finish the work here, the people behind you won't work or won't be able to.

Yes, that's right. So, the result is that productivity, as I mentioned earlier, can be a significant issue. Although it is a very efficient method, it can easily lead to a collapse of efficiency if something goes slightly wrong. That's why the concept of cell production method has emerged. Ultimately, skilled workers enter the cell and carry out all tasks from start to finish. Therefore, there is no break time. In a way, this is something that many companies continue to utilize. In Section 3, skilled workers handle everything from start to finish. Some places even combine these two methods and pass the work along in this way, where work continues up to the point of painting. There are also methods that combine only the advantages of the two. I'm not sure where you will be working, but you may be using the cell production method.

Please check it out because you might be able to do it once. Whether it's a party or through a direct interview, ask what kind of new production method is being used there, what the production line is, or what program is being used. Ask once and show that you have prepared more. I think you will be able to receive much more benefits and points. Thank you. Please subscribe and like.

생산기술의 모든 것 + 사이클타임, 트러블슈팅, CAPA, 택트타임, 불량처리, QCD, 3정5S, 4M, 레이아웃, 풀프루프, LOB, 가공, 조립, PLC, 셀 생산방식 등

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