Advances and trends in plastic forming technologies for welded tubes
نویسندگان
چکیده
منابع مشابه
Cold End Forming Of Welded Steel Tubes
The production of custom and specific tube end shapes by cold end forming using a die is generally limited to seamless tubular parts. Current research work in the field follows the same trend as that of industry and, therefore, there is no accumulated experience, no practical design rules, and no information available in the specialized literature concerning the utilization of tube end forming ...
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In the article the changes associated with construction of machines used in die and die-less sheet metal forming have been presented. The selected future directions of development in new technologies and machines for sheet metal forming taking into account modern blank holding systems in the process of deep drawing have been indicated. Also the tendencies in introduction of new technologies and...
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최근 스마트폰 사용자의 폭발적 증가에 따른 모바일 인터 넷 서비스 및 멀티미디어에 대한 급격한 수요 증가로 인해 기 존 3G 망이 포화 상태에 이르게 되었고, 이러한 수요를 만족 시키기 위해 4세대 이동 통신 시스템인 LTE (Long-term evolution) 서비스가 개시되었다. 더불어, 현재 LTE 보다 개 선된 LTE-Advanced 시스템에 대한 연구, 표준화, 개발이 활 발히 진행 중에 있다 [1]. LTE-Advanced의 요구 성능은 하향 링크와 상향 링크에서 최대 데이터 전송 속도가 각각 1Gbps와 500Mbps이며, 주파수 전송 효율 역시 하향 링크에서 최대 30 bps/Hz에 이른다. 이와 같이 매우 높은 데이터 전송률과 주파 수 효율을 얻기 위해, LTE-Advanced에 채택...
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Since tubes are widely used for different industrial applications, processing of tubes by the Severe Plastic Deformation (SPD) method has been the target of different attempts. Among these attempts, development of SPD processes for tubes based on Equal Channel Angular Pressing (ECAP) has been more successful. As an illustration, Tube Channel Pressing (TCP) has been presented as an attractive SP...
متن کاملInvestigation on Formability of Tailor-Welded Blanks in Incremental Forming
Steel laser tailor-welded blanks (TWBs) are produced by end-to-end joining of base sheets using different welding methods. In this article, the formability of laser TWBs of St12 and St14 with thicknesses of 1 mm and 1.5 in single point incremental forming process were experimentally and numerically investigated. First, the forming limit wall angle was experimentally determined for each of the b...
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ژورنال
عنوان ژورنال: Chinese Journal of Aeronautics
سال: 2016
ISSN: 1000-9361
DOI: 10.1016/j.cja.2015.10.011