Program: Collaborative Research with Industry (CRI)

Field: Mechanical and Manufacturing Engineering

Principal Investigator: Assoc. Prof. Dr. Mohd khairol anuar bin mohd ariffin

Sending University: Universiti Putra Malaysia (UPM)

Japanese Co-Investigator: Prof. Dr. Hideki AOYAMA

Japanese University: Keio University

Year: 2015

Abstract:

With the rapid development of national economy, Malaysia manufacturing industry makes a great progress. The industry has a full range of products, which are widely used in more than 20 fields, such as aviation and shipping, army equipment, auto agricultural equipment, machine tool, engineering machinery, and so on. Turning offers significant advantages such as it is more flexible manufacturing method, capable to fabricate complex geometrical cylindrical features, has great ecological advantages as it is often used as a dry cutting process, yields good surface finishing that close to final tolerance. As manufacturing sector contributes the second largest after services sector, this sector is an important economic component to be explored. High productivity through the optimization of manufacturing processes is one of the elements that should be introduced in the manufacturing sector. An increase in productivity requires involvement of all technological operations where optimum technological processes, optimum tool selection, optimum combination of tool-workpiece material and determination of optimum cutting variables and tool geometry must be considered. Manufacturers presume to have higher and higher productivity in their machining processes and predictable tool wear change mechanism of their cutting tools. These call for major improvements in the design of cutting tools. Apart from considering the tool life, strict control on the quality of surface finishing during turning is extremely important too. The biggest challenge is to maintain the product within the specification throughout the mass production circumstances and the ability to foresee tool wear progression which would support them in predicting or change the tool before it would affect the final product. To overcome those problems, one of the important keys to be considered is tool geometry optimization. Turning on AISI 12L14 is not wide spread. In that respect, using cemented carbide as a tool, the optimization of tool geometry using this free cutting steel material capable of delivering high dimensional accuracy and low surface roughness would be a significant improvement in machining process. Through the optimization of tool life and least of product variations, the improvement in productivity will lead to reduction of cost in manufacturing processes. Indirectly, this will help manufacturers in optimizing their process by reducing their products rejection. Hence, the study outcomes will help the manufacturers to obtain their manufacturing productivity cost at an optimum level and at the same time maintain the part™s quality at the best level. Moreover, it will benefit the manufacturers to be competitive in both national and global markets which indirectly will contribute to country™s economic growth.