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<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高，硬度高，冷作硬化效應顯著，<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<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;">不鏽鋼板料在折彎時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;">不鏽鋼板相對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，<span style="display:none;" id="__kindeditor_bookmark_end_18__"></span></span>折彎時工件折彎角</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，冷作硬化效應顯著因此在選擇壓彎刀具時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，其表麵粗糙度要比碳鋼的壓彎刀具高一個數量級。</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>不鏽鋼板折彎及其加工要點<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備時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，根據經驗，一道彎工件的展開尺寸為直角邊相加減去兩個板厚，完全可以滿足設計精度要求，根據經驗公式計算展開量可簡化計算過程大大提高生產效率；</span><span>&nbsp;&nbsp;</span> </p> <p> <span>4、</span><span style="font-family:宋體;">材質的屈服強度越大，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計的越小。<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，<span style="display:none;" id="__kindeditor_bookmark_end_18__"></span></span>相對於碳鋼相同板厚的不鏽鋼折彎角較大，這一點應特彆注意否則會出現壓彎裂紋，影響工件強度。</span> </p> <p> <span></span> </p>