Grinder

Position Summary

Sets up and operates variety of grinding machines such as external, internal, and surface grinders, to grind metal workpieces such as machine parts, dies, or tools by performing the following duties.

Duties and Responsibilities

· Examines and feels surface of workpiece for defects.

· Studies blueprint or layout on workpiece to visualize grinding to be done, and plans sequence of operations.

· Selects grinding disc and secures it on spindle. Selects grade of abrasive belt, wheel, or disk according to specifications, knowledge of abrasives, and condition of metal, and attaches to grinder.

· Dresses wheel with dressing device.

· Lifts workpiece and positions and secures workpiece to holding device.

· Selects feed rates, grinding speeds, depth of cuts, and grinding wheel of size, shape, and grade for each operation.

· Positions and tightens stops to limit travel of workpieces or grinding wheel.

· Moves controls to position wheel and workpiece in relation to each other, and to set feed, speed, and depth of cut.

· Starts machine, turns handwheel to feed grinding wheel to workpiece or vice versa, and engages power feeding device. Starts grinder and moves it over surface of workpiece to remove scratches, laminated metal, excess weld material, and burs.

· Turns valve handle and directs flow of coolant against wheel and workpiece.

· Observes operation and adjusts position and action of wheel and workpiece

· Check Chemical solution for accurate reading, clean and replace as needed

· Verifies dimensions of ground workpieces for conformance to specifications.

· Measures, marks, and scribes workpiece to lay it out for grinding.

· Operates tracer attachment to duplicate contours from templates or models.

· Polishes ground areas with finer abrasive to produce smooth, unmarred surface.

· Replaces worn abrasive disks, wheels, and belts.

· Carry out other duties as necessary to perform function within state and federal regulations.