为了修整凸形超硬磨料砂轮，开发了一种新的修整/修整装置，称为电弧修整器，以在不损坏磨粒的情况下获得所需的轮廓。圆弧修整器采用碳化硅杯形砂轮作为修整工具，并具有进给、往复和摆动运动，以帮助杯形砂轮生成圆弧轮廓。该工艺的显著优点是修整过程中同时进行修整。该工艺也适用于各种磨料和粘结材料。

FOR TRUING SUPERABRASIVE WHEELS WITH CONVEX PROFILE, A NEW TRUING/DRESSING DEVICE, CALLED THE ARC TRUER, WAS DEVELOPED TO ACHIEVE THE DESIRED PROFILE WITHOUT DAMAGE ON THE ABRASIVE PARTICLES. THE ARC TRUER EMPLOYS A SILICON CARBIDE CUP WHEEL AS THE TRUING TOOL, AND HAS INFEED, RECIPROCATION AND SWING MOVEMENTS ASSISTING THE CUP WHEEL TO GENERATE AN ARC PROFILE. THE PROCESS OFFERS THE SIGNIFICANT ADVANTAGE THAT DRESSING OCCURS SIMULTANEOUSLY DURING TRUING. THE PROCESS CAN ALSO BE APPLIED TO ALL KINDS OF ABRASIVE AND BOND MATERIAL.