理化检验-物理分册2024，Vol.60Issue(2)：6-9,37,5.DOI:10.11973/lhjy-wl202402002
取样方式对航空铝合金锻件性能评价结果的影响
Influence of sampling method on performance evaluation results of aviation aluminum alloy forgings
周小军 1王宇锋 2王飞 3陈来 1田进 1李俊1
作者信息
- 1. 魏桥(苏州)轻量化研究院有限公司, 苏州 215132
- 2. 航空工业贵州安大航空锻造有限责任公司, 安顺 561000
- 3. 贵州新安航空机械有限责任公司, 安顺 561000
- 折叠
摘要
Abstract
The bottom of 7055 aluminum alloy aviation wheel hub tire die forging blank was sampled by three methods of different directions,different positions and different specifications,and the mechanical properties of the samples were tested.The effects of different sampling methods on the test results and their effects on the performance evaluation of forgings were compared and analyzed.The results show that the larger the angle between the sampling direction and the forging streamline,the smaller the elongation after fracture.If the sampling position was very close to the surface of the forging billet,the surface defects would obviously reduce the strength and elongation of the sample.When the sampling position was in the deformation zone with good streamline,the test results were larger.When the sampling position was in the geometric center,the test results could truly reflect the service performance of the forging.When the sampling position was on the defective surface and the non-geometric center with good forging streamline,the service performance of the forging could be truly reflected.In a certain area,the tensile sample specification did not affect the test results,and when the length of the tensile specimen passed through the streamline junction area,the test results were abnormal.The results obtained by improper sampling methods couldn't be used to correctly evaluate the mechanical properties of the forged wheel hub.关键词
7055铝合金/取样方式/力学性能/锻造流线Key words
aluminum alloy forging/sampling method/mechanical property/forging flow line分类
通用工业技术引用本文复制引用
周小军,王宇锋,王飞,陈来,田进,李俊..取样方式对航空铝合金锻件性能评价结果的影响[J].理化检验-物理分册,2024,60(2):6-9,37,5.
