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TC4钛合金电子束沉积修复工艺研究 被引量:4
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作者 刘容光 卜文德 +1 位作者 刘小江 柯黎明 《精密成形工程》 2018年第6期102-106,共5页
目的研究TC4钛合金电子束沉积修复工艺对修复试样成形形貌的影响。方法主要对电子束流、送丝速度和成形速度3种工艺参数进行研究,观察其宏观形貌,从而归纳出工艺参数对电子束沉积修复钛合金TC4的影响规律。结果在一定范围内,电子束流较... 目的研究TC4钛合金电子束沉积修复工艺对修复试样成形形貌的影响。方法主要对电子束流、送丝速度和成形速度3种工艺参数进行研究,观察其宏观形貌,从而归纳出工艺参数对电子束沉积修复钛合金TC4的影响规律。结果在一定范围内,电子束流较小时,母材与修复区熔合不良,产生"V"型孔洞缺陷;随着电子束流增大,热影响区也随之增大。送丝速度主要影响试样的外观成形,较快或较慢的送丝速度都会使修复试样表面成形不良。成形速度较小时,成形表面有密集的鱼鳞纹,修复试样余高较低;成形速度增大时,热影响区随之减小,同时会产生孔洞缺陷。结论不同的电子束流、送丝速度、成形速度都会对TC4钛合金电子束沉积修复形貌产生重要影响,需要合理的控制工艺参数。 展开更多
关键词 电子束沉积修复 电子束流 送丝速度 成形速度
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The Research into the Pressure Testing System for Auto Windshield Boneless Elastic Steel Strips
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作者 LI Xiu-feng XIAN Hong-xiong +3 位作者 liu rong-guang LI Jun FAN Jian ZHAN Bai-shao 《International Journal of Plant Engineering and Management》 2011年第1期47-50,共4页
In order to solve the quality problem of the boneless elastic steel strip which was used to scrape the rain on the glass ,the solutions for testing the steel strip's pressure was put forward. A special structure pres... In order to solve the quality problem of the boneless elastic steel strip which was used to scrape the rain on the glass ,the solutions for testing the steel strip's pressure was put forward. A special structure pressure sensor based on a solenoid was designed. A master-slave computer architecture of the personal computer and Atmega48 was also adopted which makes the design of the friendly user's interface become possible. The results from the user's application indicate that the pressure testing system achieved the expected effect. 展开更多
关键词 pressure sensor master-slave computer stepping motor
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