A Comparative study of Wear and tool life of HSS TiN coated end mills and WC uncoated end mills

Praphan Yawara,Naphatara Intanon,K Kida

doi:10.1051/matecconf/201926401006

Praphan Yawara, Naphatara Intanon + Show 1 more

Open Access

https://doi.org/10.1051/matecconf/201926401006

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Abstract

The objective of this research is to compare the performance and economic value of TiN coated end mills and WC end mills on S45C slot milling. The commercial end mills that produce and provide by SAN Engineering and Supply Co., Ltd. and commercial S45C steels, were selected for this investigation. The models of wear were analyzed by the scanning electron microscope, SEM. The result showed that the wear models of the TiN coated end mills are abrasive and surface peeling, while the wear models of WC end mills are adhesive and uniform micro-chipping on the cutting edges. The analysis the economic value also represented that WC end mills are worth more than the others.

Highlights

A small and medium manufacture companies have an importance for manufacturing industries of Thailand
Table 4. and Figure 5. showed that the average of loss of TiN coated High-Speed Steel (HSS) end mills diameter after used in dry condition is .046 mm. and the average loss diameter of TiN coated HSS end mills in wet condition is .045 mm. and the average of loss of WC end mills in dry and wet condition are .0425 and .012 respectively
The diameter loss of TiN coated HSS end mills in both conditions are barely different, but it is rather different on WC end mills

Summary

Introduction

A small and medium manufacture companies have an importance for manufacturing industries of Thailand. The cutting tools are an important part of the production process and represent a significant share in the costs of manufactured products. The most common material that used to a coating to improve mechanical properties of the surface is Titanium. The workpiece that coated by titanium is used in the machine tools industry, automotive part and in the medical [2,3,4]. WC is mostly used in the area of SME industries even it costs more, it significantly shows an economic value better than a TiN coated end mills. In recently the price of coated tools decreased to a possible level for the uses in industrial. The SME should start to reconsider on the price and performance of coated tools for effective use again

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