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延伸(拔长)是自由锻造最基本的工序,绝大多数的自由锻件都是以延伸工序为主锻造出来的。对于一个锻工来说,如果不能熟练地掌握在锻锤连续打击下的延伸操作技巧,那他就不能成为一个名符其实的自由锻工人,更难以承担起在各类自由锻设备上领班生产的职责。我们所谓的延伸(拔长),就是在锻压机械的作用下,使坯料横截面积减小、长度增加的工序。延伸可以在上下平砧间进行,也可以在型砧(或摔子)内进行。
Extension (pull) is the most basic free-forging process, the vast majority of free forgings are mainly forging out of the extension process out. For a forging worker, he can not be a truly free-forging worker without being able to master the extended handling skills under a continuous hammer strike and can hardly afford foreman production on a wide range of free-forging equipment Responsibilities. Our so-called extension (pull), is the role of forging machinery, the billet cross-sectional area to reduce the length of the process. Extension can be carried out in the upper and lower flat anvil, can also be type anvil (or the wrestler) within.