鎢鋼凹模是(shi)(shi)沖模中起直(zhi)接(jie)(jie)形(xing)成沖件(jian)作用(yong)(yong)的(de)(de)(de)凹形(xing)工(gong)作零(ling)(ling)件(jian),即以(yi)(yi)內形(xing)為(wei)工(gong)作表面的(de)(de)(de)零(ling)(ling)件(jian)。防護(hu)板(ban)是(shi)(shi)防止手指(zhi)或異物(wu)進入沖模危險區域的(de)(de)(de)板(ban)狀零(ling)(ling)件(jian)。壓(ya)(ya)(ya)(ya)料(liao)(liao)(liao)(liao)板(ban)(圈)是(shi)(shi)沖模中用(yong)(yong)于(yu)(yu)壓(ya)(ya)(ya)(ya)住沖壓(ya)(ya)(ya)(ya)材(cai)(cai)料(liao)(liao)(liao)(liao)或工(gong)序(xu)件(jian)以(yi)(yi)控制材(cai)(cai)料(liao)(liao)(liao)(liao)流動的(de)(de)(de)零(ling)(ling)件(jian),在拉深(shen)模中,壓(ya)(ya)(ya)(ya)料(liao)(liao)(liao)(liao)板(ban)多數稱為(wei)壓(ya)(ya)(ya)(ya)料(liao)(liao)(liao)(liao)圈。壓(ya)(ya)(ya)(ya)料(liao)(liao)(liao)(liao)筋(jin)是(shi)(shi)拉延模或拉深(shen)模中用(yong)(yong)以(yi)(yi)控制材(cai)(cai)料(liao)(liao)(liao)(liao)流動的(de)(de)(de)筋(jin)狀突起,壓(ya)(ya)(ya)(ya)料(liao)(liao)(liao)(liao)筋(jin)可(ke)以(yi)(yi)是(shi)(shi)凹模或壓(ya)(ya)(ya)(ya)料(liao)(liao)(liao)(liao)圈的(de)(de)(de)局部(bu)結構,也可(ke)以(yi)(yi)是(shi)(shi)鑲入凹模或壓(ya)(ya)(ya)(ya)料(liao)(liao)(liao)(liao)圈中的(de)(de)(de)單獨零(ling)(ling)件(jian)。壓(ya)(ya)(ya)(ya)料(liao)(liao)(liao)(liao)檻是(shi)(shi)斷(duan)面呈(cheng)矩形(xing)的(de)(de)(de)壓(ya)(ya)(ya)(ya)料(liao)(liao)(liao)(liao)筋(jin)特稱。承料(liao)(liao)(liao)(liao)板(ban)是(shi)(shi)用(yong)(yong)于(yu)(yu)接(jie)(jie)長凹模上(shang)平面。
要(yao)定期檢查轉盤(pan)上下模座的對中性。
鎢鋼(gang)凹模(mo)(mo)(mo)的(de)(de)對(dui)中性(xing)不(bu)好(hao),造成(cheng)模(mo)(mo)(mo)具(ju)(ju)快(kuai)速鈍化(hua),工(gong)件加(jia)工(gong)質量(liang)變差(cha)。應檢查并潤滑轉(zhuan)盤上(shang)的(de)(de)模(mo)(mo)(mo)孔(kong)及(ji)導向鍵(jian),如有損(sun)傷及(ji)時(shi)修復;清潔轉(zhuan)盤的(de)(de)下(xia)模(mo)(mo)(mo)座,以便下(xia)模(mo)(mo)(mo)準確安(an)裝(zhuang),并檢查其鍵(jian)或(huo)鍵(jian)槽的(de)(de)磨(mo)(mo)損(sun)情況,必要時(shi)更換(huan);使(shi)用專用芯棒校(xiao)準模(mo)(mo)(mo)具(ju)(ju)工(gong)位,如有偏差(cha)及(ji)時(shi)調整。 當沖軟或(huo)粘性(xing)的(de)(de)材(cai)料(如鋁);沖薄(bo)的(de)(de)研磨(mo)(mo)性(xing)材(cai)料(如玻璃環氧片);沖薄(bo)的(de)(de)硬質材(cai)料(如不(bu)銹鋼(gang));頻繁地步(bu)沖,可使(shi)用表面硬化(hua)(采用鍍鈦、滲(shen)氮等(deng)方法(fa),其表面硬化(hua)層為厚度12~60μm的(de)(de)分子結(jie)構)的(de)(de)沖頭(tou)。成(cheng)型模(mo)(mo)(mo)具(ju)(ju)應將打(da)擊頭(tou)從最(zui)低(di)位置逐步(bu)向上(shang)微調到(dao)適當位置,否(fou)則容易打(da)壞模(mo)(mo)(mo)具(ju)(ju)。
