通過鍛造能消除金屬在冶煉過程中產(chǎn)生的鑄態(tài)疏松等缺陷，優(yōu)化微觀組織結(jié)構(gòu)，同時由于保存了完整的金屬流線，鍛件的機械性能一般優(yōu)于同樣材料的鑄件。

Forging can eliminate the defects such as casting porosity and so on during the smelting process， and optimize the microstructure. At the same time， because of the intact metal flow line， the mechanical properties of the forgings are generally better than those of the same materials.

低塑性拔長時，應(yīng)注意選擇合適的送進比，送進比太小時，變形集中在上下部，中心都鍛不透，并沿軸向產(chǎn)生拉鍛造應(yīng)關(guān)于鍛件的一些基本知識力，黑龍江forging，導(dǎo)致內(nèi)部橫向裂紋產(chǎn)生。在鐓粗時，常用軟襯墊鐓粗或疊鐓（用于鍛薄餅形零件），以改善變形的不均勻性，防止產(chǎn)生表面裂紋。

When low plasticity is pulled out，forging采購， attention should be paid to selecting suitable delivery ratio， sending too much time， deformation ?on the upper and lower parts， and the center can not be built， and forging along the axial direction should be related to some basic knowledge of forging， resulting in the occurrence of internal transverse cracks. In the upsetting， commonly used soft liner (for upsetting or folding upsetting forging thin pancake， uneven parts) to improve the deformation， prevent the generation of cracks on the surface.

鋁合金鍛件的生產(chǎn)可在多種鍛造設(shè)備上進行。鍛錘可用于開式模鍛和閉式模鍛，其生產(chǎn)費用較低，forging價格，鍛打時需要控制好錘頭的高度、打擊力量和速度，因為在急劇變形過程中鋁合金對應(yīng)變速率敏感并具有放熱性。機械壓力機和螺旋壓力機都廣泛用于鋁合金閉式模鍛，適宜于生產(chǎn)中等尺寸、大體積和形狀適度的鋁鍛件。

The production aluminum alloy forgings can be carried out on a variety of forging equipment. Hammer can be used for open die forging and closed die forging， the production cost is low， when the need to ?the forging hammer height，forging廠家， strike force and speed， because of the sharp deformation in the process ?Alloy strain rate sensitive and exothermic. Mechanical press and screw press are widely used in aluminum alloy closed die forging， which is suitable for the production of medium size， large volume and moderate shape ?aluminum forgings.

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