Scholarlink

<p>Equal-channel angular pressing in parallel channels (ECAP-PC) has emerged as a promising alternative to conventional ECAP for grain refinement. This review comprehensively examines the evolution of ECAP-PC, focusing on recent advancements in die design and processing parameters to enhance efficiency and broaden its applicability. Fundamental aspects of ECAP-PC, including strain distribution, tool stability, and die geometry, are critically analyzed. Notably, the paper introduces and thoroughly evaluates two innovative die configurations: twin parallel channel angular extrusion (TPCAE) and double twin parallel channel angular extrusion (DTPCAE). While TPCAE has been previously reported, the DTPCAE process is presented here for the first time, demonstrating superior performance in terms of material throughput, reduced frictional forces, and enhanced tool life compared to both TPCAE and conventional ECAP-PC. These improvements position ECAP-PC as a viable technique for industrial applications, particularly in the large-scale manufacturing of ultrafine-grained metals and alloys. By providing a comprehensive overview and in-depth analysis of these developments, this review aims to contribute to the advancement of ECAP-PC as a practical and effective processing technique.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development of Equal Channel Angular Pressing in Parallel Channels Toward Enhanced Efficiency

  • 期刊论文

  • 发表日期：

    2025年4月13日

查看全文
  • R. Ebrahimi,
  • M. Reihanian,
  • A. Botkin,
  • R. Z. Valiev

摘要

Equal-channel angular pressing in parallel channels (ECAP-PC) has emerged as a promising alternative to conventional ECAP for grain refinement. This review comprehensively examines the evolution of ECAP-PC, focusing on recent advancements in die design and processing parameters to enhance efficiency and broaden its applicability. Fundamental aspects of ECAP-PC, including strain distribution, tool stability, and die geometry, are critically analyzed. Notably, the paper introduces and thoroughly evaluates two innovative die configurations: twin parallel channel angular extrusion (TPCAE) and double twin parallel channel angular extrusion (DTPCAE). While TPCAE has been previously reported, the DTPCAE process is presented here for the first time, demonstrating superior performance in terms of material throughput, reduced frictional forces, and enhanced tool life compared to both TPCAE and conventional ECAP-PC. These improvements position ECAP-PC as a viable technique for industrial applications, particularly in the large-scale manufacturing of ultrafine-grained metals and alloys. By providing a comprehensive overview and in-depth analysis of these developments, this review aims to contribute to the advancement of ECAP-PC as a practical and effective processing technique.