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以Q235热轧带钢为研究对象,利用ANSYS/AUTODYN模块模拟了抛丸和抛浆对基体表面的冲击过程,并结合抛丸和抛浆冲击试验研究了带钢表面粗糙度和残余应力。结果表明,抛丸冲击后基体表面冲击深度和冲击直径分别比抛浆高20%～49%和9%～22%;抛丸冲击基体表面瞬时温度为247～413℃,抛浆冲击基体表面瞬时温度为60～97℃,说明浆体中的流体可以带走大量冲击热能。抛丸冲击后基体表面粗糙度和表面残余应力比抛浆冲击分别高22%～37%和3.7%～13.8%,抛浆冲击后基体表面完整性优于抛丸冲击。
Abstract：Taking Q235 hot rolled strip steel as the research object, the impact process of shot blasting and slurry blasting on the matrix surface was simulated by ANSYS/AUTODYN module, and the surface roughness and residual stress of strip steel were studied combining with shot blasting and slurry blasting impact tests. The results show that after shot blasting impact, the impact depth on the matrix surface and the impact diameter are 20%-49% and 9%-22% higher than that of the slurry blasting, respectively; the instantaneous temperature of the matrix surface of shot blasting impact is 247-413 ℃, and the instantaneous temperature of slurry blasting impact is 60-97 ℃,which shows that a large amount of impact heat energy can be carried away by the fluid in the slurry. The surface roughness and the surface residual stress of the matrix after shot blasting impact are 22%-37% and 3. 7%-13. 8% higher than that of the slurry blasting, respectively, the surface integrity of the matrix after slurry blasting impact is better than that after shot blasting impact.
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基本信息:
中图分类号:TG178
引用信息:
[1]柴泽琳,周存龙,齐浩,等.抛丸和抛浆对金属基体表面完整性的影响对比[J].塑性工程学报,2024(02):97-104.
基金信息:
国家自然科学基金资助项目(52375361); 中央引导地方科技发展资金资助项目(Z135050009017); 山西省高校研究生教育创新项目(BY2022010); 山西省高等学校科技创新计划项目(2022L308)
2024-02-28
2024-02-28
2024-02-28