2016年7月7日星期四

Dressing tools for shaping the dresser or repair to blunt the skin to restore face grinding performance during operation and the correct geometry. Timely and correct wheel dressing, is to improve the grinding efficiency and grinding quality assurance indispensable link. Dresser generally turning with a diamond wheel, grinding, rolling and other methods.

    
Turning trimming method in a single diamond particles (or finely made of diamond diamond diamond pen repair piece) as tool turning wheel is the most common method of trimming. Diamond tool mounted on the tool holder usually each inclined in both vertical and horizontal directions of about 5 ° ~ 15 °; the point of contact with the diamond wheel grinding wheel axis should be less than 0.5 ~ 2mm, trimming the diamond and make a uniform speed feed mobile. Surface roughness after grinding requires smaller, the feed rate should be lower, such as to reach the surface roughness Ra0.16 ~ 0.04μm, finishing feed rate should be less than 50mm / min. Trimming the total is generally sided 0.1mm around, back and forth several times dressing. Tinker cutting depth each of 0.01 ~ 0.03mm, refinement is less than 0.01mm. Diamond wheel trimming method using electroplating or powder metallurgy methods such as the large number of diamond particles embedded in the surface of the roller made of steel diamond wheel to a certain speed of rotation (thereby reducing the relative speed of the roller and the wheel), high-speed rotating grinding wheel surface cutting and rolling action, the grinding wheel and the roller profile to get consistent sharp work surface. Diamond wheel manufacturing complexity, high cost, but durable, high dressing efficiency, suitable for dressing grinding special shaping surface (such as threads, gears and turbine blade tenon tooth, etc.) wheel in mass production. Grinding wheel dressing method using super-hard silicon carbide grinding wheel rotating at high speed and low speed of rotation of the grinding wheel, in order to achieve the purpose of dressing. Rolling trimming method with carbide disc, a suit made of hardened steel wavy white iron discs or grooved from the wheel, and the wheel to roll and squeeze trimmed. Trim wheel typically mounted on the fixture manually, finishing high efficiency, suitable for coarse grinding wheel dressing.

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