SIMULATION-AIDED VALUE STREAM MAPPING FOR PRODUCTIVITY PROGRESSION IN A STEEL SHAFT MANUFACTURING ENVIRONMENT

Authors

  • Thomas Munyai Tshwane University of Technology
  • Olasumbo Ayodeji Makinde Tshwane University of Technology
  • Charles Mbohwa University of Johannesburg
  • Boitumelo Ramatsetse Tshwane University of Technology

DOI:

https://doi.org/10.7166/30-1-2089

Keywords:

Steel Shaft Manufacturing, Value Stream Mapping, Productivity

Abstract

Productivity improvement in the steel industry is pivotal to achieving competiveness that stimulate the economic growth of a country. In the past decade, the steel shaft manufacturing industry has experienced low productivity rates, making it difficult to compete at a global level. In light of this, the aim of this research study is to investigate the various process wastes and bottlenecks that limit the productivity progression of a steel shaft manufacturing environment, using integrated value stream mapping and system simulation methodologies. Data captured through the system observation of the shaft manufacturing process of a steel company was used to map and simulate the system. The results of the current state mapping of the steel shaft manufacturing environment revealed the various process wastes present in this system. The result of the simulation of the system revealed that the system bottlenecks were the saw master and milling stations. The strategic interventions in the saw master and milling stations improved these stations throughput from 959 to 1 218 (27%) and 624 to 1 003 (60.74%) components respectively. The work-in-progress components generated in the entire system after the strategic interventions reduced from 415 to 17.

Downloads

Download data is not yet available.

Author Biographies

Thomas Munyai, Tshwane University of Technology

Head of Department of Operations Management

Olasumbo Ayodeji Makinde, Tshwane University of Technology

Operations Management Lecturer

Charles Mbohwa, University of Johannesburg

Deputy Dean, Faculty of Engineering and Built Environment

Boitumelo Ramatsetse, Tshwane University of Technology

Industrial Engineering Lecturer

Downloads

Published

2019-05-29

How to Cite

Munyai, T., Makinde, O. A., Mbohwa, C., & Ramatsetse, B. (2019). SIMULATION-AIDED VALUE STREAM MAPPING FOR PRODUCTIVITY PROGRESSION IN A STEEL SHAFT MANUFACTURING ENVIRONMENT. The South African Journal of Industrial Engineering, 30(1), 171–186. https://doi.org/10.7166/30-1-2089

Issue

Vol. 30 No. 1 (2019)

Section

General Articles

License

Authors who publish in the Journal agree to the following terms:
  1. Authors retain copyright and grant the Journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the Journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this Journal.