A grinding assembly for grinding a weld joint of a workpiece includes a grinder apparatus, a grinder apparatus includes a grinding wheel configured to grind the weld joint, a member configured to receive the grinding wheel, the member being configured to be removably attached to the grinder apparatus,...http://www.google.com/patents/US6949005?utm_source=gb-gplus-sharePatent US6949005 - Grinding assembly, grinding apparatus, weld joint defect repair system, and methods
