技术交流 › 金属材料论坛 › 低碳钢冲裁断面与间隙的关系

HEATS 发表于 2010-9-12 16:42:46

低碳钢冲裁断面与间隙的关系

<TABLE class=table1 borderColor=#b5dba2 cellSpacing=0 cellPadding=0 width="81%" align=center border=1>
<TBODY>
<TR bgColor=#e9fde4>
<TD width="15%"><SPAN align="center">
<DIV align=center>断面分类</DIV></SPAN></TD>
<TD width="20%"><SPAN align="center">
<DIV align=center>Ⅰ</DIV></SPAN></TD>
<TD width="16%"><SPAN align="center">
<DIV align=center>Ⅱ</DIV></SPAN></TD>
<TD width="12%"><SPAN align="center">
<DIV align=center>Ⅲ</DIV></SPAN></TD>
<TD width="19%"><SPAN align="center">
<DIV align=center>Ⅳ</DIV></SPAN></TD>
<TD width="18%"><SPAN align="center">
<DIV align=center>Ⅴ</DIV></SPAN></TD></TR>
<TR>
<TD width="15%"><SPAN align="center">毛面斜度α</SPAN></TD>
<TD width="20%"><SPAN align="center">14°～16°</SPAN></TD>
<TD width="16%"><SPAN align="center">8°～11°</SPAN></TD>
<TD width="12%"><SPAN align="center">7°～11°</SPAN></TD>
<TD width="19%"><SPAN align="center">6°～11°</SPAN></TD>
<TD width="18%"><SPAN align="center">—</SPAN></TD></TR>
<TR>
<TD width="15%"><SPAN align="center">塌角高度R①</SPAN></TD>
<TD width="20%"><SPAN align="center">10～20%t</SPAN></TD>
<TD width="16%"><SPAN align="center">8～10%t</SPAN></TD>
<TD width="12%"><SPAN align="center">6～8%t</SPAN></TD>
<TD width="19%"><SPAN align="center">4～7%t</SPAN></TD>
<TD width="18%"><SPAN align="center">2～5%t</SPAN></TD></TR>
<TR>
<TD width="15%"><SPAN align="center">光面高度G①</SPAN></TD>
<TD width="20%"><SPAN align="center">10～20%t②</SPAN></TD>
<TD width="16%"><SPAN align="center">15～25%t</SPAN></TD>
<TD width="12%"><SPAN align="center">25～40%t</SPAN></TD>
<TD width="19%"><SPAN align="center">35～55%t③</SPAN></TD>
<TD width="18%"><SPAN align="center">50～70%t④</SPAN></TD></TR>
<TR>
<TD width="15%"><SPAN align="center">毛面高度M</SPAN></TD>
<TD width="20%"><SPAN align="center">70～80%t</SPAN></TD>
<TD width="16%"><SPAN align="center">60～75%t</SPAN></TD>
<TD width="12%"><SPAN align="center">50～60%t</SPAN></TD>
<TD width="19%"><SPAN align="center">35～55%t⑤</SPAN></TD>
<TD width="18%"><SPAN align="center">25～45%t⑥</SPAN></TD></TR>
<TR>
<TD width="15%"><SPAN align="center">毛&nbsp;&nbsp;&nbsp; 刺</SPAN></TD>
<TD width="20%">大、拉毛、工件变形</TD>
<TD width="16%">正常、拉毛</TD>
<TD width="12%">正常、拉毛</TD>
<TD width="19%">中等、拉毛及挤毛⑦</TD>
<TD width="18%">大、拉毛及挤毛⑦</TD></TR>
<TR>
<TD width="15%"><SPAN align="center">间隙z/2</SPAN></TD>
<TD width="20%"><SPAN align="center">17～21t%</SPAN></TD>
<TD width="16%"><SPAN align="center">11.5～12.5%t</SPAN></TD>
<TD width="12%"><SPAN align="center">8～10%t</SPAN></TD>
<TD width="19%"><SPAN align="center">5～7%t</SPAN></TD>
<TD width="18%"><SPAN align="center">1～2%t</SPAN></TD></TR></TBODY></TABLE>
<P><BR><SPAN class=blk14>①&nbsp;R与G的和约等于材料断裂前凸模进入材料的深度。<BR>②&nbsp;工件或废料上的光面可能窄而不规则，甚至没有光面。<BR>③&nbsp;带光点。<BR>④&nbsp;光面有两层，中间隔入毛面。<BR>⑤&nbsp;带粗糙面。<BR>⑥&nbsp;毛面有两层，中间隔入光面。<BR>⑦&nbsp;挤毛高度与模具刃口锋利有关。</SPAN></P>
               

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