Experimental Evaluation on Grinding Texture on Flank Face in Chamfer Milling of Stainless Steel

Xian-Li Liu,Jin-Kui Shi,Li-Hui Wang,Wei Ji

doi:10.1186/s10033-018-0271-0

Abstract

The surface quality of chamfer milling of stainless steel is closed related to the products of 3C (Computer, Communication and Consumer electronics), where a cutter is a major part to achieve that. Targeting a high-quality cutter, an experimental evaluation is carried out on the influence of grinding texture of cutter flank face on surface quality. The mathematic models of chamfer cutter are established, and they are validated by a numerical simulation. Also the grinding data are generated by the models and tested by a grinding simulation for safety reasons. Then, a set of chamfer cutting tools are machined in a five-axis CNC grinding machine, and consist of five angles between the cutting edge and the grinding texture on the 1st flank faces, i.e., 0°, 15°, 30°, 45° and 60°. Furthermore, the machined cutting tools are tested in a series of milling experiments of chamfer hole of stainless steel, where cutting forces and surface morphologies are measured and observed. The results show that the best state of both surface quality and cutting force is archived by the tool with 45° grinding texture, which can provide a support for manufacturing of cutting tool used in chamfer milling.

Highlights

In modern 3C industry (Computer, Communication and Consumer Electronics), the metal shell provides a better experience in both touch and visual than plastic one
The grinding texture on tool flank face is closely related to the surface quality, due to it is in contact with finish surface directly during machining
Xie et al [18] proposed a set of experiments using cutting tool with a non-coated micro-grooved rake face, and the results showed cutting temperature and cutting force were reduced significantly

Summary

Introduction

In modern 3C industry (Computer, Communication and Consumer Electronics), the metal shell provides a better experience in both touch and visual than plastic one. High-quality surface is usually obtained by optimising cutting parameters and tool geometrical parameters [2]. The grinding texture on tool flank face is closely related to the surface quality, due to it is in contact with finish surface directly during machining.

Results

Conclusion