Following on from last week’s blog post about preparing for a welding project, we thought we’d share some tips on prep with you!
Following some best practices can help you optimise results in your weld preparation, cleaning, and grinding jobs.
• Lower the grinding angle: When you are using a grinding wheel, lower the grinding angle. That helps you maximize control and reduce the risk of gouging. The outside corner of a grinding wheel is the most aggressive, so the steeper the angle of approach, the greater the possibility the wheel will remove more surface material than you want and undercut or gouge the workpiece. By lowering the angle, you widen the wheel’s surface contact with the workpiece and reduce the wheel’s aggressiveness.
• Watch the pressure. If you use wire wheels, remember that the tips of the wires are designed to do the work. Pressing too hard can cause the wires to bend so that the tips are no longer striking the material.
• Use consistent strokes. Enter the grinding stroke on a pull rather than on a push to help control the aggression of the grinding wheel. Grind in line with the material using smooth, even strokes rather than short, choppy strokes. This provides effective results with coated abrasives and bonded abrasives.
• Avoid arm grinding. When you use only your arms to operate a grinding wheel, the wheel vibration can take a toll on your wrists and forearms. Instead, use your legs and large muscles of your body to help move and control the grinder. To minimize fatigue, move your entire body in the direction of the movement rather than just your arms.