中英文对照机械专业英语文章

发布日期:[10-12-26 11:51:49] 浏览人次:[]

grain flow for strong parts.

●增加长度、减小横截面,称为延伸金属。

●减小长度、增加横截面,称为镦粗金属。

●通过用封闭锻模挤压,改变长度和横截面。

这导致有利的晶粒流使零件坚固。

Common Forging Processes

常用的锻造工艺

The metal can be forged hot (above recrystallization temperatures) or cold.

金属既可热锻(高于再结晶温度)也可冷锻。

Open die forgings/Hand forgings. Open die forgings or hand forgings are made with repeated blows in an open die, where the operator manipulates the workpiece in the die. The finished product is a rough approximation of the die. This is what a traditional blacksmith does, and is an old manufacturing process.

开式模锻/手工锻:开式模锻或手工锻就是操作者操纵工件在开式锻模中反复击打。完成的产品是锻模的粗糙近似物。这就是传统铁匠干的活,是较古老的制造工艺。

Impression die forgings/Precision forgings.  Impression die forgings and precision forgings are further refinements of the blocker forgings. The finished part more closely resembles the die impression.

压模锻/精密锻:压模锻和精密锻是雏形模锻的进一步改进。完成的零件与模膛更相似。

Press forgings. Press forgings use a slow squeezing action of a press, to transfer a great amount of compressive force to the workpiece. Unlike an open-die forging where multiple blows transfer the compressive energy to the outside of the product, press forging transfers the force uniformly to the bulk of the material.

压锻:压锻通过压力机缓慢的挤压动作将巨大的压力传递给工件。不像开式模锻那样需要多次击打把压缩能量传递到零件外表面,压锻能将力均匀地传递给材料的主体。

This results in uniform material properties and is necessary for large weight forgings. Parts made with this process can be quite large as much as 125kg(260lb) and 3m(10 feet) long.

这使材料性能一致,对大重量锻件而言是十分必要的。采用此工艺生产的零件重量可达125kg(260lb)而长度可达3m(10 feet)。

Upset forgings. Upset forging increases cross-section by compressing the length, this is used in making heads on bolts and fasteners, valves and other similar parts.

顶锻:顶锻通过压缩长度增加横截面,用于在螺栓等紧固件、柱塞及类似零件上制造头部。

Roll forgings. In roll forging, a bar stock, round or flat is placed between die rollers which reduces the cross-section and  increases the length to form parts such as axles, leaf springs etc. This is an essential form of draw forging.

滚锻:在滚锻时,圆的或是扁平的棒料放在模辊之间缩小横截面增加长度制成诸如轮轴、板簧之类的零件。这是轧锻的基本形式。

Swaging. Swaging—a tube or rod is forced inside a die and the diameter is reduced as the cylindrical object is fed. The die hammers the diameter and causes the metal to flow inward causing the outer diameter of the tube or the rod to take the shape of the die.

型锻:型锻—将圆管或圆棒强制压入锻模,随着圆柱形物体的被压入其直径减小。锻模锤击横断面使金属向内流动导致圆管或圆棒的外径变为锻模的形状。

Net shape/Near-net shape forging. In net shape or near-net shape forging,  forging results in wastage of material in the form of ma

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