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BURNISHING

Sinotech offers an exceptionally wide range of secondary processes that are applied to metals formed in hot or cold processes. Sinotech' Supplier Quality Engineers determine the availability of the process within the metal forming facility, as well as the quality. If the internal secondary processes do not meet Sinotech standards then the processes are carried out in Sinotech-audited and qualified off-site secondary processing facilities. Sinotech has audited, qualified and worked with QS-9000 and ISO certified secondary processing facilities in China, Taiwan and Korea for over 12 years. Sinotech is dedicated to managing your project on-site and delivering parts to you at lower prices but the same quality, service and terms as a domestic supplier.

Burnishing is a process by which a smooth hard tool (using sufficient pressure) is rubbed on the metal surface. This process flattens the high spots by causing plastic flow of the metal. The edges of sheet metal can be smoothed out by pushing the sheet metal through a die that will exert a compressive force to smooth out the blanked edge and the burrs caused by the die break.

Roller Burnishing improves the finish and size of surfaces of revolution such as cylinders and conical surfaces. Both internal and external surfaces can be burnished using an appropriate tool.

click here for a larger viewBurnishing improves the surface finish, surface hardness, wear-resistance, fatigue and corrosion resistance.