• 한국컴퓨터정보학회논문지
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• 제16권2호
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• pp.279-288
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• 2011

본 연구는 자동차부품제조업의 전사적 자원관리(ERP : Enterprise Resource Planning)시스템 전체 모듈중 가용재고관리 프로세스에 대한 표준화 모델을 개발한다. 표준화 모델은 중소기업청 및 중소기업기술정보진흥원에서 제시한 정보화구축 개발 방법론에 준하여 단계별 방법론에 따라 시스템이 구축되게 된다. 표준화 모델은 가용 재고관리 프로세스를 위한 발주관리, 입고관리, 출고관리, 재고관리의 프로세스를 표준화 시키고 표준모듈을 개발한다. 본 연구로 ERP시스템 하에서 가용재고관리 프로세스를 구축하고자 하는 제조기업 및 관련 전문 IT업체 들이 표준화된 모듈을 적용하여 시스템을 보다 효과적으로 구축 할 수 있으며, 시스템에 대한 구축 용이성과 신뢰성을 제공한다. 본 연구 결과를 적용함으로써 기업의 원자재 및 제품의 과다보유를 방지하고 적정, 안전재고를 항시 보유할 수 있으며 실시간 재고파악, 고객납기 준수, 과다제품 생산 방지 및 재고비용 절감 등이 가능하다.

• 한국생산제조학회지
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• 제22권4호
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• pp.700-707
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• 2013

Owing to high oil prices and environmental issues, the automobile industry has conducted considerable research and made large investments to manufacture a high-efficiency automobiles. In the case of automobile wheels in which a lightweight material is used to increase the fuel efficiency a mold is used to increase the production efficiency; however, the use of the molding method for this purpose is very expensive. Therefore an automobile wheel consists of two parts. In this study a two-piece automobile wheel is manufactured by the friction stir welding(FSW) of Al6061-T6 to reduce the manufacturing cost and process complexity. The FSW welding tool geometry and rotational speed, and the feed rate are key factors that significantly affect the weld strength. Therefore tensile tests were conducted on specimens produced using various welding conditions, and the optimal FSW welding conditions were applied to manufacture aluminum wheels. To ensure reliability, prototype aluminum wheels were manufactured and their mechanical reliability and safety were evaluated using a durability test, fatigue durability test, and impact test. Through this study, aluminum wheel production was made possible using the FSW method.

• 한국산업보건학회지
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• 제16권3호
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• pp.264-275
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• 2006

MSDs(Musculoskeletal Disorders) and Job Stress have been recognized as one of major problems in industry these days according to the results of most industrial health/safety studies. Specifically, MSDs have been growing problems in Korea as well as in US and European countries with higher incidence rate every year. This study tries to understand characteristics of job stress and association between MSDs and job stress for the workers at automobile manufacturing industry. This study also tries to understand the differences in terms of job stress between white collar and blue collar workers. The results showed that there was definite association between symptoms of MSDs and some of major job stress factors. However, there were big differences in terms of associations between two groups(white collar and blue collar workers). The first group(white collar workers) showed more associations between symptoms of MSDs and some of major job stress factors than that of the second group(blue collar workers) although symptom rate of the second group was higher than that of the first group. It could be concluded that symptoms of the first group had more effects from job stress while symptoms of the second group had more effects from typical job risk factors based on the results of the study.

• 산업기술연구
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• 제22권B호
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• pp.51-60
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• 2002

Currently, many companies are trying to be more competitive by implementing the most appropriate software package called ERP (Enterprise Resource Planning). ERP can support the company's business process. A manufacturing execution system (MES) is an industrial software system, as well as a manufacturing management function in make-to-order and make-to-stock manufacturing environments. This paper presents an architecture of MES. This study develops MES to identify the functional requirements of loading & scheduling in the automobile industry. This study shows the effectiveness of the proposed MES, how to develop MES and interface with ERP package.

• 소성∙가공
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• 제20권4호
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• pp.279-283
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• 2011

Recently incremental sheet metal forming (ISF) has used widely in making prototypes and small-volume products in automotive industry etc. We apply the ISF to make a 1/4 sized automobile body-in-white. First, ISF tests for rectangular shaped cup have been performed to clarify the formability denoting the relationship between the component wall angle and maximum cup height of safe forming. Next, a CAD model for the automobile was designed and segmented into several components in order to accommodate the working space of the CNC machine we adopted and the formability of the sheet metal. Then, a CAM software was employed to generate the tool path for manufacturing wooden dies and all the small parts. Finally, the different parts were joined into a single component by laser welding after the ISF process. By using the ISF we successfully produced the 1/4 sized automobile body-in-white.

• 한국기계가공학회지
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• 제11권6호
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• pp.139-144
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• 2012

In the automobile industry, the various efforts to lower their industrial cost and enhance fuel efficiency have been made through process improvement or weight saving of automobile parts. Gear is one of significant parts of transmission, which is made by cast iron or alloy steel. It is expensive due to complex processing, inferior materials and large machining allowance. In this study, alternative gear cars oil which is based on fluid applications materials is produced by reducing surface induction hardening and carburizing hardened in production. And then, wear characteristic and mechanical properties such as hardness of the sintered alloy which is used as a substitute for small machining allowance is investigated.

• 한국정밀공학회지
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• 제33권3호
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• pp.191-198
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• 2016

Traceability is essential in modern automotive manufacturing. Among existing technologies, RFID is the most promising choice for this purpose. However, due to the harsh conditions of production lines, especially in the paint shop, automobile OEMs would require expensive dedicated RFID tags and readers, which are incompatible with standard RFID technologies. Unlike the manufacturing industry, the logistics industry uses UHF label tags for track and trace, which provides high performance and a low price. Recently, this technology has improved to the extent that it can be used in harsh conditions such as on metal parts or in liquid. Herein, we assess the technical, operational, and economic feasibility of UHF label-tag technology for seamless end-toend traceability. Based on prototyping, lab/field tests, and cost-benefit analysis, we have proven that the single disposable UHF tags can successfully replace the problematic and expensive tags used in most domestic automobile OEMs today.

• 한국안전학회지
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• 제28권3호
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• pp.100-106
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• 2013

According to the Statistics Korea, in 2011, people over the age of 65 years old accounted for 11.8% of Korea's population. This number is expected to rise to 15.0% by 2019, making Korea an "aged society". As age increases, physical ability degrades to the point that the workload must be adjusted limitations. However, workloads are given regardless of workers' ages or abilities. In addition, a decline in work efficiency due to aging also increases the risk of work-related injuries. Furthermore, the cases of stress related diseases along with musculoskeletal disorders(MSDs) rise as main factors of industrial disasters and excessive job stress gives negative influence not only on mental health but also on physical health so that job stress becomes a hot issue as a main cause of work ability falloff and turnover. The purpose of this research is to examine how the sociodemographic characteristics, MSDs symptoms and musculoskeletal workload of workers in the manufacturing industry of automobile parts influence work ability and job stress. As a result of the research, job ability showed significant differences statistically according to age, working year, sex, marital status and musculoskeletal workload and job stress showed significant differences statistically according to age, working year, marital status and musculoskeletal workload. In addition, it showed that as the worker's job ability decreases, job stress increases.

• 한국산업정보학회논문지
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• 제28권1호
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• pp.35-48
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• 2023

본 연구에서는 급변하고 있는 세계 경제 환경 하에서 중국 자동차 산업의 발전 현황과 자동차 산업과 관련한 중국 정부의 정책을 살펴보고, 중국 내 소비자들의 자동차 구입에 대해 소비자 동향 조사를 실시하였다. 중국 정부의 강력한 국가 배출가스 규제정책과 내연기관 자동차 제조·판매 기준의 강화에도 불구하고 소비자들은 다양한 이유로 앞으로 자동차를 구매 시 내연기관차를 선택하겠다는 응답비율이 59.6%에 달하는 등 정부 정책과 소비자 인식 사이에는 적지 않은 차이가 존재하고 있음을 확인하였다. 또한, 최근의 중국 내 자동차 판매량의 감소 추세를 발견하여 2010년 1월부터 2020년 12월까지 월별 판매량을 학습용 데이터로, 2021년 1월부터 2022년 11월 동안의 판매량을 평가용으로 구분하여 향후 중국의 자동차 수요를 예측하는 시계열 모형들을 제안, 평가하였다. 그리고 각 시계열모형을 적용하였을 때의 2023년도의 월별 예측 판매량을 보였다.

• 대한안전경영과학회지
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• 제24권2호
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• pp.127-134
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• 2022

Production management in the automobile parts industry is carried out according to the production plan of the customer, so it is important to prevent shortages in product supply. As the product composition became increasingly complex, the MES System was built for the purpose of efficient production plan management and inventory management, but its utilization is low. This study analyzed the problems of the MES system and sought to improve it. Through previous studies, it was confirmed that the inventory management of the pull approach that actually occurred in the warehouse is more suitable than the push approach based on the forecast of the warehouse for the volatility, complexity, and uncertainty of orders in the auto parts industry. To realize this, we tried distributed MRP by using the ADO function of VBA to link the standard information of the MES system with Excel and change the structure of the BOM table. Through this, it can help increase the accuracy of production planning and realize efficient inventory management, thereby increasing the utilization of the MES system in the auto parts industry and enhancing the competitiveness of the company.