A Case of Operational Efficiency Improvement in EPS Motor Manufacturing Process Using IE Technique

IE 기법을 활용한 EPS 모터 제조공정의 운영효율성 향상 사례

  • Kim, Jung Suop (Dept. of Consulting, Graduate School, Kumoh National Institute of Technology) ;
  • Lee, Ji Soo (School of Industrial Engineering, Kumoh National Institute of Technology)
  • 김정섭 (금오공과대학교 대학원 컨설팅학과) ;
  • 이지수 (금오공과대학교 산업공학부)
  • Received : 2017.05.17
  • Accepted : 2017.07.07
  • Published : 2017.07.31


This paper proposes a procedure to improve the operational efficiency of the automotive parts manufacturing process by applying classical IE techniques composed of process analysis, work method analysis, and motion analysis, and a specific application case is outlined. The proposed procedure was developed originally by the Task Force organized in L company's automotive parts manufacturing business unit. The balance efficiency and production capacity were used as measures of operational efficiency. The developed procedure follows the general procedure of analyzing the phenomenon at the manufacturing shop, deriving an improvement solution to solve the problem, evaluating each derived alternative, and implementing it to the field to achieve productivity improvement. Among the methods used in each phase of the procedure, function analysis used in the waste discovery phase and R&R evaluation method used in the alternative assessment phase are unique techniques developed by L company's TF. The R&R Evaluation method techniques are described in detail because this method is highly applicable and extensible. A case of applying developed procedures to improve the EPS motor manufacturing process is discussed. As a result, the line balance efficiency and production capacity were increased to a satisfactory level.


Balance Efficiency;Function Analysis;IE Technique;Production Capacity;Rate and Return Block Diagram;Waste


Supported by : 금오공과대학교


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