锻造工艺参数对铝合金机械铰链性能的影响  

Effect of Forging Process Parameters on Performance of Aluminum Alloy Mechanical Hinges

作　　者：李广德 王瑛 李伟伦 LI Guangde;WANG Ying;LI Weilun(Qinghai Communications Technical College,Xining 810003,China;Education Evaluation and Quality Monitoring Center of Qinghai Education Department,Xining 810008,China;School of Materials Science and Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]青海交通职业技术学院,青海西宁810003 [2]青海省教育厅教育评估与质量监测中心,青海西宁810008 [3]兰州理工大学材料科学与工程学院,甘肃兰州730050

出　　处：《热加工工艺》2022年第3期108-111,共4页Hot Working Technology

基　　金：交通部西部交通建设科技项目(200131879549)。

摘　　要：采用不同的始锻温度和终锻温度进行了6A02-0.5Cr铝合金机械铰链的锻造,并进行了力学性能和耐腐蚀性能的测试分析。结果表明:随始锻温度和终锻温度的增加,试样的抗拉强度先增大后减小,断后伸长率和质量损失率先减小后增大,耐腐蚀性能先提升后缓慢下降。和450℃始锻温度的性能相比,始锻温度480℃锻造时试样的抗拉强度增大19 MPa,质量损失率减小32.8%;和350℃终锻温度的性能相比,终锻温度380℃锻造时的试样抗拉强度增大15 MPa,质量损失率减小31.49%。The forging of 6A02-0.5Cr aluminum alloy mechanical hinges was carried out at different initial forging temperatures and final forging temperatures.And the mechanical properties and corrosion resistance were tested and analyzed.The results show that with the increase of initial forging temperature and final forging temperature,the tensile strength first increases and then decreases,the elongation and mass loss first decreases and then increases,and the corrosion resistance improves first and then decreases slowly.Compared with that of the initial forging temperature at 450℃,the tensile strength of the specimen increases by 19 MPa and the mass loss rate decreases by 32.8%when initial forging temperature is 480℃.Compared with that of the final forging temperature at 350℃,the tensile strength of the specimen increases by 15 MPa and the mass loss rate decreases by 31.49%when final forging temperature is 380℃.

关 键 词：机械铰链 6A02-0.5Cr铝合金 锻造工艺 力学性能 耐腐蚀性能 

分 类 号：TG319[金属学及工艺—金属压力加工] TG316.2