模具工业
模具工業
모구공업
DIE & MOUID INDUSTRY
2015年
5期
17-21
,共5页
等壁厚螺旋管%模具最大中心角%模具型腔设计
等壁厚螺鏇管%模具最大中心角%模具型腔設計
등벽후라선관%모구최대중심각%모구형강설계
even-thickness helical tube%the largest central angle of die%design of die cavity
针对等壁厚螺旋管零件提出一种增量锻造成形方法,由于零件内外轮廓特殊,其成形模设计是成形工艺的关键。以单导程500 mm,厚度8 mm的螺旋管为例,通过转化三维问题为平面二维几何问题,对其增量成形模结构进行数学分析与公式推导,计算出能使工件顺利脱模的单块模具最大中心角,并从轴向截面和纵向截面对模具型腔进行设计。试验表明,使用该模具成形的等壁厚螺旋管效果良好。
針對等壁厚螺鏇管零件提齣一種增量鍛造成形方法,由于零件內外輪廓特殊,其成形模設計是成形工藝的關鍵。以單導程500 mm,厚度8 mm的螺鏇管為例,通過轉化三維問題為平麵二維幾何問題,對其增量成形模結構進行數學分析與公式推導,計算齣能使工件順利脫模的單塊模具最大中心角,併從軸嚮截麵和縱嚮截麵對模具型腔進行設計。試驗錶明,使用該模具成形的等壁厚螺鏇管效果良好。
침대등벽후라선관령건제출일충증량단조성형방법,유우령건내외륜곽특수,기성형모설계시성형공예적관건。이단도정500 mm,후도8 mm적라선관위례,통과전화삼유문제위평면이유궤하문제,대기증량성형모결구진행수학분석여공식추도,계산출능사공건순리탈모적단괴모구최대중심각,병종축향절면화종향절면대모구형강진행설계。시험표명,사용해모구성형적등벽후라선관효과량호。
An incremental forming method was proposed for forging an even-thickness of he?lical tube.The die design is the key technology due to the specialinternal and external pro?file of tube. Taking a helical tube with thickness of 8 mm and pitch length of 500 mm as an example, mathematical analysis and formula derivation were made on the die structure by converting 3D problem to 2D, and the largest central angle of die was obtained, the die cavity was also designed in axial cross section and longitudinal crosssection. The experi?ment verified the helical tube was formed well.