⑴設(shè)計(jì)的沖壓件必須滿(mǎn)足產(chǎn)品使用和技術(shù)性能，并能便于組裝及修配。

⑵設(shè)計(jì)的沖壓件必須有利于提高金屬材料的利用率，減少材料的品種和規(guī)格，盡可能降低材料的消耗。在允許的情況下采用價(jià)格低廉的材料，盡可能使零件做到無(wú)廢料及少?gòu)U料沖裁。

⑶設(shè)計(jì)的沖壓件必須形狀簡(jiǎn)單，結(jié)構(gòu)合理，以有利于簡(jiǎn)化模具結(jié)構(gòu)、簡(jiǎn)化工序數(shù)量，即用少、簡(jiǎn)單的沖壓工序完成整個(gè)零件的加工，減少再用其他方法加工，并有利于沖壓操作，便于組織實(shí)現(xiàn)機(jī)械化與自動(dòng)化生產(chǎn)，以高勞動(dòng)生產(chǎn)率。

壓住材料。克服傳統(tǒng)的模具設(shè)計(jì)結(jié)構(gòu)，在卸料板上開(kāi)出容料間隙(即模具閉合時(shí)，卸料板與凹模貼合，而容納材料處卸料板與凹模的間隙為材料厚t-0.03～0.05mm)。如此，沖壓中卸料板運(yùn)動(dòng)平穩(wěn)，而材料又可被壓緊。關(guān)鍵成形部位，卸料板一定做成鑲塊式結(jié)構(gòu)，以方便解決長(zhǎng)時(shí)間沖壓所導(dǎo)致卸料板壓料部位產(chǎn)生的磨(壓)損，而無(wú)法壓緊材料。

Press the material. In order to overcome the traditional mold design structure, the clearance of material is opened on the discharge plate (i.e., when the die is closed, the discharge plate and the die are fitted, and the gap between the discharge plate and the die is t-0.03 to 0.05mm). In this way, the discharging plate moves smoothly, and the material can be pressed tightly. In the key forming part, the discharge plate must be made into an inlaid structure to facilitate the solution of the grinding (pressure) loss caused by the pressing part of the unloading plate for a long time, and the material can not be pressed.

管材的鋸削：選用細(xì)齒鋸條，當(dāng)管壁鋸?fù)负箅S即將管子沿著推鋸方向轉(zhuǎn)動(dòng)一個(gè)適當(dāng)角度，再繼續(xù)鋸割，依次轉(zhuǎn)動(dòng)，直至將管子鋸斷。鋸割時(shí)管子必須夾正。

Cutting of pipe: select a fine toothed saw blade, when the tube wall is sawed through a proper angle along the direction of the push saw, then continue sawing and turn, until the pipe is sawed. When sawing is cut, the pipe must be clamped.

五金沖壓模具的安裝是否正確合理，不僅影響五金沖壓件的產(chǎn)品質(zhì)量和精度，還會(huì)影響模具的工作壽命及生產(chǎn)安全。并且熟練掌握沖壓模具的安裝也是每個(gè)沖壓工應(yīng)該掌握的技巧。

Whether the installation of the metal stamping die is correct and reasonable, not only affects the quality and precision of the metal stamping parts, but also affects the working life and production safety of the die. And skilled in stamping die installation is also a skill that every stamping worker should master.