Relationships between implementation of TQM, JIT, and TPM and manufacturing performance

Research on Total Quality Management (TQM), Just-in-Time (JIT) and Total Productive Maintenance (TPM) generally investigates the implementation and impact of these manufacturing programs in isolation. However, many researchers believe and argue conceptually the value of understanding the joint implementation and effect of manufacturing programs. This study investigates the practices of the three programs simultaneously. We find that there is evidence supporting the compatibility of the practices in these programs and that manufacturing performance is associated with the level of implementation of both socially- and technically-oriented practices of the three programs.     

Optimally locating in-house logistics areas to facilitate JIT-supply of mixed-model assembly lines

In modern-day production systems, ever-rising product variety poses a great challenge for the internal logistics systems used to feed mixed-model assembly lines with the required parts. As an answer to this challenge many manufacturers especially from automobile industries have identified the supermarket-concept as a promising part feeding strategy to enable flexible small-lot deliveries at low cost. In this context, supermarkets are decentralized in-house logistics areas in the direct vicinity of the final assembly line, which serve as intermediary stores for parts. Small tow trains are loaded with material in a supermarket and deliver parts Just-in-Time to the stations lying on their fixed route. This paper discusses the general pros and cons of the supermarket-concept and treats the decision problem of determining the optimal number and placement of supermarkets on the shop floor. A mathematical model is proposed, an exact dynamic programming algorithm presented, and the validity of the proposed approach for practical purposes as well as the trade-off resulting from fixed installation and maintenance cost is investigated in a comprehensive computational study.     

Opening Markets and Industrial Restructuring

Abstract

Industries are responding to the challenge of increasing globalization of production by restructuring into leaner and more flexible production processes in order to cut costs and gain global competitiveness. The auto industry, which is one of the most globally oriented industries has been especially involved in this movement. Since 1990 the market environment of the Argentine auto industry has changed rapidly from that of a closed, highly protected environment to an open one that includes economic integration with the world’s 9th largest auto producer, Brazil. The need to be globally competitive has forced firms to adopt Just-in-Time/Total-Quality-Control (JIT/TQC) systems of production. This paper presents micro, plant level research on the response of Argentine autopart manufacturers to this radical change in its market environment. The analysis is based on a case study of 10 well-established autopart firms which were interviewed in depth to get some idea of the measures being taken by them to survive in this new global climate. The extent to which the “world class manufacturing techniques” of JIT/TQC are being adopted in these firms is examined. The survey finds a wide variety of adaptations of these techniques.