Disadvantages in casting processing

Source: China Bearing Network Time: 2018-01-19

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1. The white point of the shortcoming; that is, the silver-white mottled surface with the appearance of lubrication on the longitudinal section of the steel after hot working; the shape is a circle or an ellipse. The elongation of the workpiece, the shortening rate of the section and the impact toughness are severely affected.
2. Because the forging is not proper; it presents a chicken-claw or herringbone internal crack; it also presents a slender crack; it damages the continuity of the metal. When the workpiece is subjected to high load; especially when the load is repeated, it is damaged early.
3. The appearance defects have external appearance; the workpiece is simply stressed and gathered to cause fatigue cracking. The burrs or scratches that occur will affect the correct clamping and power of the car processing; severe scratches will reduce the strength of the steel; .
4. The concave end of the end face is generated; the turning amount of the machining is increased or the forging is formed.

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