MQL高速车削7075铝合金的试验研究

2018-06-20

作者：裴宏杰1，刘成石1，王贵成1，邹晔2 单位：1江苏大学；2无锡职业技术学院

摘要：7075铝合金表面大多采用MQL切削加工方式。为寻求与7075铝合金相匹配的MQL用可降解植物油，结合实际情况系统地开展了蓖麻油和玉米油高速车削7075铝合金的试验研究。测试蓖麻油和玉米油对7075铝合金的浸润，得到平衡时间和润湿角。对此进行单因素切削试验设计，比较分析了蓖麻油和玉米油微量润滑条件下的切削力、切削温度和表面粗糙度。结果表明，采用蓖麻油的加工效果优于玉米油。

关键词：微量润滑；高速车削；7075铝合金；植物油；生物降解

中图分类号：TG51；TH16文献标志码：A

Experimental Study on Highspeed MQL Turning of 7075 Aluminum Alloy

Pei Hongjie，Liu Chengshi，Wang Guicheng，Zou Ye

Abstract:7075 Aluminum alloy is machined with MQL(MinimumQuantity Lubrication).In order to find the suitable degradable vegetable oil for MQL cutting 7075 Aluminum alloy，the experimental researches are systematically conducted to highspeed turning 7075 aluminum alloy with castor oil and corn oil based on the actual national conditions.The wetting tests for castor oil and corn oil on 7075 Aluminum alloy are conducted，and the equilibrium time and wetting angle are obtained.A single factor cutting test is designed to compare the cutting force，cutting temperature and surface roughness.The analytical results show that the processing effects with castor oil are better than that with corn oil，it has reference value for engineering application.

Keywords:MQL；highspeed turning；Aluminiumalloy 7075；vegetable oil；biodegradation