ÿþ <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>What is stamping press---Higrade(Qingdao) Moulds & Products Co., Ltd. China stamping die,higrade stamping die|China press die ÿChina progressive company/manufacture/supplier,China sheet metal parts</title> <meta name="keywords" content="What is stamping press,China stamping die |China press die ÿChina progressive company ÿmanufacture,supplier,China sheet metal parts"> <meta name="description" content="Located in Qingdao, China, Higrade Stamping specializes in stamping die, progressive die, sheet metal parts, including stainless steel/iron stamping parts, Galvanized sheet stamped parts,and so on.Excellent stamping die manufacturer, supplier."> <link href="../css.css" rel="stylesheet" type="text/css"> <script> function autoResize() { try { document.all["test"].style.height=test.document.body.scrollHeight document.all["testbottom"].style.height=testbottom.document.body.scrollHeight document.all["testtop"].style.height=testtop.document.body.scrollHeight } catch(e){} } </script> </head> <body bgcolor="#FFFFFF" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"> <!-- ImageReady Slices (-1) --> <table width="1003" border="0" align="center" cellpadding="0" cellspacing="0" id="__"> <tr> <td colspan="2"><iframe id=testtop style="height:expression(1); aho:expression(autoResize())" src="../top1.asp" scrolling="no" frameborder="0" width="100%"></iframe></td> </tr> <tr> <td width="260" valign="top" background="../images/index_06.jpg" bgcolor="#FAFAFA" style="background-position:top; background-repeat:repeat-x;"><iframe id=test style="height:expression(1); aho:expression(autoResize())" src="../left2.asp" scrolling="no" frameborder="0" width="260"></iframe></td> <td align="center" valign="top" background="../images/index_07.jpg" bgcolor="#FFFFFF" style="background-position:top; background-repeat:repeat-x;"><table width="660" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td height="30"></td> </tr> <tr> <td height="35" background="../images/title.gif" style="background-repeat:no-repeat;"><table width="560" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="44"></td> <td width="328" height="30" valign="top" class="STYLE9-2"><div align="left">News Center</div></td> <td width="188"></td> </tr> </table></td> </tr> <tr> <td height="10" class="STYLE6"></td> </tr> <tr> <td class="STYLE6"><table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" class="STYLE3_5"> <tr> <td height="35"><div align="center"><strong>What is stamping press</strong></div></td> </tr> <tr> <td><div align="center"> <table width="90%" border="0" cellspacing="0" cellpadding="0"> <tr> <td class="STYLE6"><DIV align=left>A<B> stamping press</B> is a metal working machine tool used to shape or cut metal by deforming it with a die.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>A press has a press frame, a bolster plate and a ram. The bolster plate (or bed) is a large block of metal upon which the bottom portion of a die is clamped; the bolster plate is stationary. Large presses (like the ones used in the automotive industry) have a die cushion integrated in the bolster plate to apply blank holder forces. This is necessary when a single acting press is used for deep drawing. The ram is also a solid piece of metal that is clamped to the top portion of a (progressive) stamping die and provides the stroke (up and down movement). This action causes the die to produce parts from the metal being fed through it.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left><B>Stamping presses</B> can be subdivided into mechanically driven presses and hydraulically driven presses. The most common mechanical presses use an eccentric drive to move the presses ram, whereas hydraulic cylinders are used in hydraulic presses. The nature of drive system determines the force progression during the rams stroke. The advantage of hydraulic presses is the constant press force during the stroke. Mechanical presses have a press force progression towards the bottom dead center depending on the drive- and hinge-system. Mechanical presses therefore can reach higher cycles per time and are usually more common in industrial press shops.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>Another classification is single acting presses versus double (seldom triple) acting presses. Single acting presses have one single ram. Double acting presses have a subdivided ram, to manage for example blank holding (to avoid wrinkles) with one ram segment and the forming operation with the second ram segment.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>Typically, presses are electronically linked (with a programmable logic controller) to an automatic feeder which feeds metal raw material through the die. The raw material is fed into the automatic feeder after it has been unrolled from a coil and put through a straightener. A tonnage monitor may be provided to observe the amount of force used for each stroke.</DIV> <DIV>&nbsp;</DIV> <DIV>&nbsp;</DIV> <DIV> <TABLE cellSpacing=0 cellPadding=0 width=660 align=center border=0> <TBODY> <TR> <TD height=30></TD></TR> <TR> <TD style="BACKGROUND-REPEAT: no-repeat" background=images/title.gif height=35></TD></TR> <TR> <TD class=STYLE6 height=10></TD></TR> <TR> <TD class=STYLE6> <TABLE class="" width="100%" border=0> <FORM name=myform action="" method=post></FORM> <TBODY> <TR bgColor=#d9d2c3> <TD bgColor=#f0f0f0 height=30> <DIV align=center><STRONG>news title</STRONG></DIV></TD> <TD bgColor=#f0f0f0 height=30> <DIV align=center><STRONG>creatime </STRONG></DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A onmouseover="javascript:this.style.cssText='CURSOR: hand;'" style="CURSOR: hand" href="http://www.higradestamping.com/news/newsen24.htm" target=_blank>Effective Method to Control Cost of...</A></DIV></TD> <TD width="33%" bgColor=#f9f9f9 height=30> <DIV align=center>2008-9-16</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A onmouseover="javascript:this.style.cssText='CURSOR: hand;'" style="CURSOR: hand" href="http://www.higradestamping.com/news/newsen23.htm" target=_blank>Progressive Stamping Die</A></DIV></TD> <TD width="33%" bgColor=#f9f9f9 height=30> <DIV align=center>2007-4-26</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A onmouseover="javascript:this.style.cssText='CURSOR: hand;'" style="CURSOR: hand" href="http://www.higradestamping.com/news/newsen22.htm" target=_blank>The advantages of Higrade Stamping</A></DIV></TD> <TD width="33%" bgColor=#f9f9f9 height=30> <DIV align=center>2007-4-26</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A onmouseover="javascript:this.style.cssText='CURSOR: hand;'" style="CURSOR: hand" href="http://www.higradestamping.com/news/newsen21.htm" target=_blank>The Structure of the Export of the ...</A></DIV></TD> <TD width="33%" bgColor=#f9f9f9 height=30> <DIV align=center>2007-4-26</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A onmouseover="javascript:this.style.cssText='CURSOR: hand;'" style="CURSOR: hand" href="http://www.higradestamping.com/news/newsen12.htm" target=_blank>Situation and Development of China...</A></DIV></TD> <TD width="33%" bgColor=#f9f9f9 height=30> <DIV align=center>2006-11-26</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A onmouseover="javascript:this.style.cssText='CURSOR: hand;'" style="CURSOR: hand" href="http://www.higradestamping.com/news/newsen8.htm" target=_blank>Higrade Stamping in China</A></DIV></TD> <TD width="33%" bgColor=#f9f9f9 height=30> <DIV align=center>2006-11-15</DIV></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></DIV></td> </tr> </table> </div></td> </tr> <tr> <td><div align="center"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="75%" height="35" align="left"><div align="center">Author:Higrade stamping</div></td> <td align="center"><div align="center">Time:2009-6-22</div></td> </tr> </table> </div></td> </tr> </table></td> </tr> <tr> <td>&nbsp;</td> </tr> </table></td> </tr> </table> <table width="1003" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#1B80B4"><iframe id=testbottom style="height:expression(1); aho:expression(autoResize())" src="../bottom1.asp" scrolling="no" frameborder="0" width="100%"></iframe></td> </tr> <tr> <td>&nbsp;</td> </tr> </table> <!-- End ImageReady Slices --> <script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? 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