Chip morphology and cutting temperature of ADC12 aluminum alloy during high-speed milling

• 作者: Xin-Xin Meng You-Xi Lin
• 来源期刊: 稀有金属（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: ORIGINAL ARTICLES
• 页码范围: 1915-1923
• 页数: 9页
• 语种: 英文

摘要

The ADC12 aluminum alloy is prone to severe tool wear and high cutting heat during high-speed milling because of its high hardness.This study analyzes the high-speed milling process from the perspective of different chip morphologies.The influence of cutting temperature on chip morphology was expounded.A two-dimensional orthogo-nal cutting model was established for finite element anal-ysis(FEA)of high-speed milling of ADC12 aluminum alloy.A theoretical analysis model of cutting force and cutting temperature was proposed based on metal cutting theory.The variations in chip shape,cutting force,and cutting temperature with cutting speed increasing were analyzed via FEA.The results show that,with the increase in cutting speed,the chip morphology changes from con-tinuous to serrated,and then back to continuous.The ser-rated chip is weakened and the cutting temperature is lowered when the speed is lower than 600 m·min-1 or higher than 1800 m·min-1.This study provides a reference for reducing cutting temperature,controlling chip mor-phology and improving cutting tool life.