TC21钛合金陶瓷喷丸参数对强度和覆盖率影响趋势研究  

Research on Influence Trend of TC21 Titanium Alloy Ceramic Shot Peening Parameters on Strength and Coverage Rate

作　　者：贾亚平 娄雷亭 JIA Yaping;LOU Leiting(AVIC Aircraft Landing Gear Co.,Ltd.,Hanzhong 723200,China;Air Force Armament Department Representative Office Stationed in Hanzhong,Hanzhong 723200,China)

机构地区：[1]中航飞机起落架有限责任公司,陕西汉中723200 [2]空装驻汉中地区军事代表室,陕西汉中723200

出　　处：《新技术新工艺》2025年第2期32-36,共5页New Technology & New Process

摘　　要：在喷丸强化过程中,为了掌握陶瓷喷丸强化的参数对TC21钛合金的喷丸强度及覆盖率的影响趋势,通过对Almen A型试片和TC21钛合金试件的喷丸强化试验研究,通过控制变量数量逐一试验喷丸参数的方法,得出喷丸参数对TC21钛合金陶瓷喷丸强度及覆盖率的影响趋势。通过试验研究发现,其他喷丸参数不变,单一增大空气压力、弹丸流量、喷丸次数或喷丸角度(45°~90°范围之间),喷丸强度都增大;其他喷丸参数不变,单一增大喷丸速度、喷丸距离或喷嘴内径,喷丸强度都减小;增大弹丸流量或喷丸次数,覆盖率都增大;而增大喷丸速度时,覆盖率就减小。对这种喷丸强化参数影响喷丸强度和覆盖率的试验方法,可以对同类型喷丸强化影响因素的确定有一定的借鉴和推广应用意义。In the process of shot peening,in order to understand the influence trend of ceramic shot peening parameters on the shot peening strength and coverage rate of TC21 titanium alloy,the shot peening experiments were conducted on Almen A specimens and TC21 titanium alloy specimens,and by controlling the number of variables and testing the shot peening parameters one by one,it was obtained that the influence trend of shot peening parameters on the shot peening strength and coverage rate of TC21 titanium alloy ceramics.Through experimental research,it was found that without changing other parameters,increasing air pressure,projectile flow rate,shot peening frequency,or shot peening angle(between 45°and 90°),it all resulted in an increase in shot peening intensity values.While other shot peening parameters remain unchanged,increasing shot peening speed,distance,and nozzle diameter,it resulted in a decrease in shot peening intensity.It was found that increasing the value of shot flow or the number of shot peening resulted in an increase in coverage rate,while increasing the shot peening speed resulted in a decrease in coverage rate.The experimental method for the influence of shot peening parameters on shot peening intensity and coverage rate provided some reference and promotion for determining the influencing factors of the similar shot peening.

关 键 词：TC21钛合金 陶瓷喷丸强化 喷丸强度 覆盖率 影响 研究 

分 类 号：V261.99[航空宇航科学与技术—航空宇航制造工程] TH162[机械工程—机械制造及自动化] TP206.1[自动化与计算机技术—检测技术与自动化装置]