合理的模具設(shè)計(jì)。在級(jí)進(jìn)模中,下料順序的安排有可能影響到?jīng)_壓件成形的精度。針對(duì)沖壓件細(xì)小部位的下料，一般先安排較大面積之沖切下料，再安排較小面積的沖切下料，以減輕沖裁力對(duì)沖壓件成形的影響。

Reasonable mold design. In progressive die, the order of blanking sequence may affect the accuracy of stamping forming. In order to reduce the impact of punching parts, the punching and cutting blanking of small area is arranged in the light of the blanking of the small parts of the stamping parts.

將閉合的模具放置于雎力機(jī)工作臺(tái)或墊板上適當(dāng)位置，如果使用氣墊，先要放好頂桿，并標(biāo)記好模具的擺放位置。

手動(dòng)扳動(dòng)沖壓機(jī)床飛輪（或操縱點(diǎn)動(dòng)按鈕），使機(jī)床上滑塊下行并停于下死點(diǎn)位置。

Place the closed mould on the bench or pad of the mandrel machine. If the air cushion is used, the ejector pin should be placed first and the placement of the mould should be marked.

Manually pull the flywheel of the stamping machine (or  the moving button), so that the slider on the machine tool will be downhill and stop at the bottom dead center.