锻件表面的技术要求,包括表面粗糙度和表面缺陷量两个方面。
The technical requirements of the surface of the forgings include two
aspects of the surface roughness and the amount of the surface defects.
1、表面粗糙度
1, surface roughness
锻压过程中,由于表层金属被氧化、外来物嵌入、金属流动不均匀、模具表面不平、银后的辅助工序不当等多种因素的影响,都会使锻件表面呈现峰谷相间和凹凸不平的微观几何特征,这种特征一般用粗糙度来表示。
The forging process, because the metal surface affected by auxiliary
processes, oxidation, foreign object embedding, uneven metal flow and
die surface uneven, silver after improper factors, micro
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features will peak and valley and the uneven surface so that the
characteristics of the forging, generally used to represent roughness.
锻件的表面粗糙度待征与机械加工表面
保定平面设计培训 保定室内设计培训 保定厨房排烟 雄安管道通风 相比,有如下特点:
The surface roughness of the forgings is compared to the machined surface, which has the following characteristics: