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槽模具 一次性止血带 保定水处理设备 一次性止血带 保定空压机 北京真空泵，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相比，有如下特点：
The surface roughness of the forgings is compared to the machined surface, which has the following characteristics:
(1)不均匀性大，同一锻件的不同部位，同批次的不同锻件都会有较大的差异。
(1) there is a big difference between the different parts of the same forgings and the different forgings of the same batch.
(2)由于锻件表面是金属受压充填型槽的结果，不像机械加工用挤切方法.剥离金属，因此表面的凹凸过渡较为平缓，而且峰尖和谷底多为钝角。
(2) the forging surface is metal compression filling groove machining
results, unlike with dissectible. Peel metal, so the surface transition
surface is relatively smooth, and the peak and valley is the obtuse
angle.
(3)由于锻件表面缺陷较多，微观的凹凸不平，凹部多为点状孔穴形态，往往与宏观表面的凹坑相混淆。
(3) due to the large forging surface defects, micro uneven, concave to
point hole shape, often with macroscopic surface pits confused.
锻件的表面粗糙度，目前尚无正式标准。一般情况下，对加工表面与正常的非加工表面均不规定表面粗糙度，但精锻件的表面一般均应规定。
There is no formal standard for the surface roughness of the forgings.
Generally, the surface roughness is not specified on the surface of the
machined surface and the normal non machined surface, but the surface of
the fine forgings should be specified.