Cutting Forces and Vibration of Pockets Corner by High Speed Milling

Abstract

When the pocket in die and mould is machined by high speed milling (HSM), the cutting forces increase and vibration fluctuates at the pocket corner because of the sudden change of cutting direction in general. It will cause serious wear and possible breakage of cutting tool, and poor quality of parts. By means of experiments, the cutting forces and vibration at the pocket corner with different HSM conditions are measured. The results show that the sharper pocket corner, higher cutting speeds, larger feed rate per tooth and radial depth of cut, will result in increasing of cutting forces and vibration amplitude. Thus, it will lead to be unstable during the process of high speed milling pocket corner.

Experimental Study of the Corner of Hardened Steel Mould in High Speed Milling with Micro-End Mill

“…As cutting speed increase, the tendency of enhancement of cutting force and reduce of vibration presents. The variation range of vibration magnitude is the largest as the corner angle is 30° [8]. Corner cutting force test at 15 o , 45 o and 75 o has been conducted to study the corner cutting force of P20 die steel in high speed milling and get the optimal cutting parameters for three kinds of corner angle.…”

Experiment on Optimal Selecting for Cutting Tools in Milling of High Hardened Steel

“…The blank can be completed all machining in a single setup, which saving the time of cutting and grinding, greatly reducing processing and manufacturing cycles of the parts and improving production efficiency. Meanwhile, which ensure the machining accuracy, the surface quality of hardened steel mold and reduce manufacturing costs [1][2][3][4].…”

Experimental Study of High-Speed Milling Hardened Steel 7CrSiMnMoV with Large-Ball Mill Cutter

“…With the advantage of owning high-processing precision, greatly shorten the processing time and processing hardened steel directly, High-speed milling has brought a huge change to die,automobile,aerospace and other manufacturing industry [1][2][3][4][5][6]. When milling hardened steel with high-speed , the cutting temperature and cutting force in cutting process is the most basic research content.…”