摘要
以常用M2高速钢和H13热作模具钢为研究对象,用SHIMADZU(岛津)AG-I/250 kN试验机自主设计工装卡具,模拟6061铝合金塑性变形时于模具表面的黏附行为,分析变形温度、变形程度和模具材料等工艺参数对铝转移量的影响,并对黏附后的模具进行形貌表征。结果表明:6061铝合金热挤压单次变形量应小于40%,变形温度约为450℃;在试验温度内,变形量较低(10%)和较高时(40%),M2高速钢对铝合金的黏附行为均高于H13;而当变形量在20%~30%时,H13对铝合金的黏附行为高于M2。
Taking M2 high speed steel and H13 hot working die steel as research objects,the adhesion behavior of 6061 aluminum alloy on the surface of die material during plastic deformation was simulated by using the fixture designed by SHIMADZU AG-I/250 kN testing machine. The effects of deformation temperature,deformation extent and die material on the adhesion of aluminum alloy to die mateials were analyzed,and the morphology of the die bonded with aluminum was characterized. The results show that the deformation of 6061 aluminum alloy should be conducted on at a deformation extent lower than 40% at 450 ℃. When the deformation is performed at an extent lower to 10% or higher than 40%,the adhesion behavior of aluminum alloy to M2 high speed steel is more obvious than that to H13. When the deformation extent is maintained at a range of 20%-30%,the adhesion behavior of aluminum alloy to H13 steel is more severe than that to M2 steel.
作者
周志红
ZHOU Zhihong(Military Academy,Henan University of Science and Technology,Luoyang 471023,China)
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2021年第3期72-76,共5页
Ordnance Material Science and Engineering
基金
国家重点研发计划项目(2016FYB0306400)
河南省杰出人才创新基金(182101510003)。
关键词
黏附
模具
热挤压
铝合金
adhesion
mold
hot extrusion
aluminum alloy
