摘要：<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不銹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;">由于不銹鋼本身屈服點(diǎn)高，硬度高，冷作硬化效應顯著(zhù)，<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不銹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;">因導熱性比普通低碳鋼差，延伸率低，導致所需變形力大；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>2、</span><span style="font-family:宋體;">不銹鋼板料在折彎時(shí)與碳鋼相比有強烈的回彈傾向；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>3、</span><span style="font-family:宋體;">不銹鋼板相對于碳鋼由于延伸率低，<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不銹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;">要大于碳鋼，否則有出現裂紋的可能；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>4、</span><span style="font-family:宋體;">由于不銹鋼板硬度高，冷作硬化效應顯著(zhù)因此在選擇壓彎刀具時(shí)要選擇熱處理硬度應達到</span><span>60HRC</span><span style="font-family:宋體;">以上的工具鋼，其表面粗糙度要比碳鋼的壓彎刀具高一個(gè)數量級。</span><span>&nbsp;</span> </p> <p> <span style="font-family:宋體;">根據以上特性，<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不銹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(lái)說(shuō)：</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(zhù)板厚增大在選擇折彎設備時(shí)折彎力的裕量應該更大；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>2、</span><span style="font-family:宋體;">單位尺寸下，抗拉強度越大，延伸率越小，所需折彎力越大，折彎角應該越大；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>3、</span><span style="font-family:宋體;">設計圖中板厚與折彎半徑對應情況下，根據經(jīng)驗，一道彎工件的展開(kāi)尺寸為直角邊相加減去兩個(gè)板厚，完全可以滿(mǎn)足設計精度要求，根據經(jīng)驗公式計算展開(kāi)量可簡(jiǎn)化計算過(guò)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)的屈服強度越大，彈性回復量就越大，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計的越小。<span style="font-family:宋體;"><span style="display:none;" id="__kindeditor_bookmark_start_17__"></span>不銹鋼板折彎及其加工要點(diǎn)，<span style="display:none;" id="__kindeditor_bookmark_end_18__"></span></span>相對于碳鋼相同板厚的不銹鋼折彎角較大，這一點(diǎn)應特別注意否則會(huì )出現壓彎裂紋，影響工件強度。</span> </p> <p> <span></span> </p>