2013年10月13日星期日

Common use of mechanical grinding method for removing surface grinding wheel dressing blunt to resume grinding capacity

Ultrafine grained metal bonded superabrasive grinding wheel to achieve hard and brittle materials, precision and ultra-precision grinding is the recent emergence of a new processing technologies. Metal-based grinding wheel wear resistance and rigidity, but abrasive wheels . In general grinding wheel using mechanical methods for removing blunt surface finishing, grinding ability to regain it. However, this method is used for metal-based powder grinding wheel dressing superabrasive inefficient, and mechanical  Synthetic diamond  wheel dressing metal matrix binder Delta left behind, making the rear angle is zero and makes abrasive friction increases, which for powder Grinding is particularly affected. Different from  Abrasive grinding wheel  wheel, metal bond diamond wheel dressing powder shaping and sharpening into two stages. Electrolysis can also be used for shaping metal bonded grinding wheel, but due to the electrochemical reaction on the spark gap is not sensitive to the reaction, and the presence of chemical products of electrolysis shaping more complex, so the electrolytic shaping precision not high enough.

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