摘要：<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不鏽鋼板折彎及其加工要點(diǎn)<span style="display:none;" id="__kindeditor_bookmark_end_18__"></span></span> <p> <span style="font-family:宋體;">由於不鏽鋼本身屈服點(diǎn)高，硬度高，冷作硬化效應(yīng)顯著，<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不鏽鋼板折彎及其加工要點(diǎn)<span style="display:none;" id="__kindeditor_bookmark_end_18__"></span></span>如下：</span><span>&nbsp;&nbsp;</span> </p> <p> <span>1、</span><span style="font-family:宋體;">因?qū)嵝员绕胀ǖ吞间摬?，延伸率低，?dǎo)致所需變形力大；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>2、</span><span style="font-family:宋體;">不鏽鋼板料在折彎時(shí)與碳鋼相比有強(qiáng)烈的回彈傾向；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>3、</span><span style="font-family:宋體;">不鏽鋼板相對(duì)於碳鋼由於延伸率低，<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不鏽鋼板折彎及其加工要點(diǎn)，<span style="display:none;" id="__kindeditor_bookmark_end_18__"></span></span>折彎時(shí)工件折彎角</span><span>R</span><span style="font-family:宋體;">要大於碳鋼，否則有出現(xiàn)裂紋的可能；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>4、</span><span style="font-family:宋體;">由於不鏽鋼板硬度高，冷作硬化效應(yīng)顯著因此在選擇壓彎刀具時(shí)要選擇熱處理硬度應(yīng)達(dá)到</span><span>60HRC</span><span style="font-family:宋體;">以上的工具鋼，其表麵粗糙度要比碳鋼的壓彎刀具高一個(gè)數(shù)量級(jí)。</span><span>&nbsp;</span> </p> <p> <span style="font-family:宋體;">根據(jù)以上特性，<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不鏽鋼板折彎及其加工要點(diǎn)<span style="display:none;" id="__kindeditor_bookmark_end_18__"></span></span>一般來說：</span> </p> <p> <span>1、</span><span style="font-family:宋體;">單位尺寸下，板材越厚，所需折彎力越大，而且隨著板厚增大在選擇折彎設(shè)備時(shí)折彎力的裕量應(yīng)該更大；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>2、</span><span style="font-family:宋體;">單位尺寸下，抗拉強(qiáng)度越大，延伸率越小，所需折彎力越大，折彎角應(yīng)該越大；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>3、</span><span style="font-family:宋體;">設(shè)計(jì)圖中板厚與折彎半徑對(duì)應(yīng)情況下，根據(jù)經(jīng)驗(yàn)，一道彎工件的展開尺寸為直角邊相加減去兩個(gè)板厚，完全可以滿足設(shè)計(jì)精度要求，根據(jù)經(jīng)驗(yàn)公式計(jì)算展開量可簡(jiǎn)化計(jì)算過程大大提高生產(chǎn)效率；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>4、</span><span style="font-family:宋體;">材質(zhì)的屈服強(qiáng)度越大，彈性回複量就越大，為獲得折彎件</span><span>90</span><span style="font-family:宋體;">度的角度，所需壓刀的角度就要設(shè)計(jì)的越小。<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不鏽鋼板折彎及其加工要點(diǎn)，<span style="display:none;" id="__kindeditor_bookmark_end_18__"></span></span>相對(duì)於碳鋼相同板厚的不鏽鋼折彎角較大，這一點(diǎn)應(yīng)特彆注意否則會(huì)出現(xiàn)壓彎裂紋，影響工件強(qiáng)度。</span> </p> <p> <span></span> </p>