文章摘要
蒋志峰,陈继芳.航空锻件的超声成像技术[J].声学技术,2009,(2):121~124
航空锻件的超声成像技术
Ultrasonic imaging technology of aviation forged piece
投稿时间:2008-01-09  修订日期:2008-05-12
DOI:
中文关键词: 超声成像  缺陷识别  锻件
英文关键词: ultrasonic imaging  flaw recognition  forge piece
基金项目:
作者单位E-mail
蒋志峰 浙江科技学院机械与汽车工程学院, 杭州, 3100232
浙江省计量科学研究院, 杭州, 310013 
jzf-hz@163.com 
陈继芳 秦山第三核电有限公司, 浙江 海盐, 314300  
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中文摘要:
      由于锻件表面不平整,且厚度不均,目前超声扫查系统普遍采用手工超声波探伤法检测锻件内部缺陷,无法应用标准的B扫描成像和C扫描成像,存在着效率低、探伤质量较差等不足之处。提出了以“厚度-灰度”超声检测为核心的基本成像过程,包括路径规划、全波采样、信号处理、波形分析和缺陷扫描成像等方法,并示例实现。该检测手段有助于促进航空锻件超声检测的智能化,提高检测的效率和可靠性。
英文摘要:
      Due to rough surface and thickness non-uniformity of forging pieces,manual ultrasonic testing has been commonly used in forging scanning system.As a result,low efficiency and poor quality are unavoidable for not being able to use the standard B-scan and C-scan imaging techniques.In this paper the ultrasonic testing methods of "depth-gray" imaging,which includes the path planning,full-wave sampling,signal processing,wave-form analysis and scanning imaging for flaw,is proposed,and thereafter illustrated with its promising effects in practical application.The approach is especially useful in promoting intelligence and automation of ultrasonic testing of aircraft forging and thereby improves the efficiency and reliability of testing.
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