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壓住材料。克服傳統的模具設計結構，在卸料板上開出容料間隙(即模具閉合時，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，沖壓中卸料板運動平穩，而材料又可被壓緊。關鍵成形部位，卸料板一定做成鑲塊式結構，以方便解決長時間沖壓所導致卸料板壓料部位產生的磨(壓)損，而無法壓緊材料。

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.

手鋸加工方法

扁鋼的鋸削：在扁鋼鋸口處劃一周圈線，分別從寬面的兩端鋸下，兩鋸縫將要結接時，輕輕敲擊使之斷裂分離。這樣鋸削，而且能較好地防止鋸齒崩缺。反之若從窄面下鋸，非但不經濟，而且只有很少的鋸齒與工件接觸，工件越薄，鋸齒越容易被工件的棱邊鉤住而折斷。

Processing method of hand saw

Sawing of flat steel: a circular line at the cutting edge of flat steel, which is cut down from the two sides of the wide surface. When the two saws will be tied, it will be gently tapped and broken apart. The sawing efficiency is high, and the sawtooth collapse is prevented. On the , if it is sawed under the narrow face, it is not economical, and only a few teeth are touched with the workpiece. The thinner the workpiece is, the more easily the sawtooth is caught and broken by the edges and edges of the workpiece.

薄板：鋸削時盡可能從寬面鋸下去，若必須從窄面鋸下時，可用兩塊木墊夾持，連木塊一起鋸下，也可把薄板直接夾在虎鉗上，用手鋸作橫向斜推鋸，使鋸齒與薄板料接觸的齒數增加，避免鋸齒崩裂。

Thin plate: sawing as far as  as wide as when sawing. If must be sawed from narrow surface, it can be held by two wooden blocks and sawed together with wooden blocks. The sheet can be clipped directly to the vise, and a hand saw is used as a transverse oblique saw to increase the number of teeth contacted with the sheet material and avoid the crack of the saw teeth.

深縫：鋸削深縫時即當鋸縫的深度超過鋸弓高度時，高度時，鋸弓就會與工具相碰，無法繼續鋸削；此時應將鋸條拆出，將鋸條轉90。

Deep seam: when sawing deep seams, when the depth of the sawblade exceeds the height of the saw bow, when the height is high, the saw bow is touched by the tool and can not continue to be sawed; the saw strip should be removed and the saw blade is turned 90.