SUS304奧氏體不銹鋼板點焊接頭的超聲成像分析
[Abstract]:Ultrasonic C-scan imaging of 1 mm thick SUS304 austenitic stainless steel plate spot welded joint was performed by ultrasonic immersion focusing incident method. The characteristics of C-scan images under different welding parameters were analyzed, and the typical welding defects such as spatter and penetration were screened out, and the corresponding A-scan signals were extracted. The diameter of the welding core is measured based on C-scan image and compared with the size of the cut face of the welding core. The results show that the C-scan image based on the ultrasonic immersion focused incident method can effectively observe the internal morphology of the welding nucleus. When the welding current is more than 8 Ka and the electric strength is less than 2 700 N, the ultrasonic C scan image clearly reflects the defects such as spatter and weld penetration, and the A scan signal of the corresponding area is obviously different from that of the normal fusion zone. The diameter of the welding core measured by ultrasonic C-scan image is 4.39 to 5.25 mm..
【作者單位】: 昆明理工大學(xué)機電工程學(xué)院創(chuàng)新制造技術(shù)研究所;
【基金】:國家自然科學(xué)基金資助項目(51565022,51565023)
【分類號】:TG441.7
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 張宏樂;王梅生;;一種改善相關(guān)子波特性的掃描信號[J];物探裝備;2006年S1期
2 H.A.K.Edelmann;肖玲;;連續(xù)振動法的編碼掃描技術(shù)[J];國外油氣勘探;1984年03期
3 卞學(xué)祖;PELCO先進(jìn)Ⅱ控制系統(tǒng)操作手冊(三)——ESG部分[J];物探裝備;1999年04期
4 張宏樂;;一種改善相關(guān)子波特征的掃描信號——“旋轉(zhuǎn)相位,對數(shù)分段”掃描信號[J];物探裝備;1999年03期
5 卞學(xué)祖;;PELCO先進(jìn)Ⅱ控制系統(tǒng)操作手冊(二)——ESG部分[J];物探裝備;1999年03期
6 沈媛媛;劉益成;;基于Matlab的偽隨機掃描信號設(shè)計與研究[J];石油儀器;2009年02期
7 蹇清平;佘新平;劉益成;;基于Matlab的偽隨機掃描信號的仿真與研究[J];石油天然氣學(xué)報;2010年06期
8 卞學(xué)祖;PELCO先進(jìn)Ⅱ控制系統(tǒng)操作手冊(一)——ESG部分[J];物探裝備;1999年02期
9 曹務(wù)祥;李憲慶;郭洪啟;;可控震源掃描信號的整形設(shè)計方法[J];石油物探;2009年06期
10 鄭恭明;張海;雷雪梅;孫祥娥;;基于片上可編程系統(tǒng)的可控震源掃描信號研究與設(shè)計[J];物探與化探;2012年03期
相關(guān)碩士學(xué)位論文 前1條
1 劉凱;基于陣列A掃描信號的超聲相控陣成像方法研究[D];中北大學(xué);2015年
,本文編號:2437181
本文鏈接:http://sikaile.net/kejilunwen/jiagonggongyi/2437181.html