Often known as “impression die forging”, closed die forging involves two or more dies containing impressions brought together. This simple process displays great versatility. Manufacturers can create a nearly limitless array of shapes and complex metal parts in this way.
Closed die forging under controlled conditions permits the creation of forgings of all sizes within relatively tight tolerances. However, manufacturers usually employ this process to produce small, intricately shaped and patterned components in high volumes.
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The process of custom closed die forgings utilizes two or more metal dies. During this forging process, the manufacturer to some extent reproduces and automates the action of a blacksmith striking hot metal on an anvil to change the shape of a metal part.
在机器的协助下,制造商对上部模具进行了编程,以击中放置在下部模具上的加热金属方块。此过程可能依赖各种不同的锻造方法。
封闭的锻造机依赖于两个润滑的两个工具模具:一个移动的下部模具(或“ Anvil Die”)和一个移动的上部模具(或“ Hammer Die”)。每个模具都由坚固,耐用的材料组成,例如高级钢合金。该模具包含最终部分形状的部分负面印象。
制造商将加热的金属放在润滑良好的底部模具上。加热过程会导致金属表面变得可延展。(此步骤需要使用足够数量的材料来再现最后一部分。)两个模具然后彼此相互移动,每个模具在压缩过程中都会塑造金属。
模具将全部或部分覆盖整个金属。死亡可以迅速生成特定部分的副本,从而在相当高的准确度中可靠地重现形状和构象。
During the compression process, a small quantity of molten metal may flow along recesses on the edges of both dies called a “flash gutter”. This plug cools quickly. Efforts to eliminate flash completely resulted in the development of “true closed die forging” techniques using completely closed die cavities.
制造商通常会通过一系列自动封闭的锻造工作站在装配线上运行加热金属,以便首先塑造零件,然后将其他细节印象深刻。例如,该零件可能会从最终的整理器腔中出现,例如,在表面上显示细节。
如今,制造商经常使用复杂的温度控制来影响金属组件的创建。例如,为了产生自定义的模拟,显示客户所需的属性,制造商可以操纵原材料的温度:
To perform hot forging, a manufacturer heats metal into a molten state. The material will then undergo reshaping and forming in the casting and forging processes.
制造商在室温下在未加热的金属上进行锻造,并使用强烈的高压在原材料中形成所需的形状或印象。例如,这种伪造的方法有时允许重塑铝。
制造商在锻造之前加热金属,但不会导致原材料失去其结构完整性。由于这种类型的锻造,金属不会重结晶,但它会采用不同的形状。
Manufacturers sometimes distinguish the closed die forging process from another popular types of forging, open die forging. That process moves hot metal through workstations in which a die will only come into contact with a part of the workpiece at any given time.
从制造的角度来看,封闭的锻造过程比许多形式的铸造或开放式锻造具有一些不同的优势。
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From a contract manufacturing firm, BuntyLLC evolved into a full service custom machined, forged and cast metal parts fabrication enterprise. We supply global solutions from our headquarters in Greenville, South Carolina.
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