论文部分内容阅读
本文描述了用新开发的超细多晶CBN磨料成型缓进给磨削镍基超耐热合金的磨削特点。用新型聚晶CBN(CBN -U)磨粒和一种有代表性的传统单晶CBN(CBN -B1)磨粒以缓进给方法一次在平面上磨出一个矩型槽进行了试验。用CBN -U磨料与用CBN -B1相比 ,磨削力降低了 2 0～ 3 0 %。用CBN -U磨料进行磨削时 ,径向和轮廓磨损都较小 ,磨削比要比CBN -B1磨粒高约 4倍。CBN -U磨料在磨削过程中的微破碎尺寸比CBN -B1磨料小。用CBN -U比用CBN -B1砂轮磨损率低而寿命长
This article describes the grinding characteristics of a newly developed ultrafine polycrystalline CBN abrasive forming mild-feed, ground nickel-base superalloy. A new type of polycrystalline CBN (CBN-U) abrasive particles and a representative of the traditional single crystal CBN (CBN-B1) abrasive particles in a slow way to wear a rectangular groove in the plane grinding experiments. Grinding force was reduced 20 ~ 30% with CBN-U abrasive compared with CBN-B1. With CBN-U abrasive grinding, the radial and contour wear are small, grinding than the CBN-B1 abrasive particles about 4 times higher. CBN-U abrasives in the grinding process of micro-crushing size smaller than the CBN-B1 abrasive. With CBN-U than with CBN -B1 wheel wear rate and long life