CENTERLESS GRINDING TROUBLESHOOTING PDF

Troubleshooting Tips: Centerless Grinding Concave work (low center)`, Work guides on entrance and exit sides deflected toward the grinding wheel. Also see . Centerless grinders are the dependable workhorses of the manufacturing world. With regular maintenance and TLC, your centerless grinding. Achieving consistent and quality results from the centerless grinding process requires an understanding of the basic fundamentals. Most application problems .

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Work not straightened sufficiently before grinding Make certain it is straightened on presses before grinding.

Troubleshooting | Noritake Co., Ltd.

Substitute harder grade or finer grained wheel Rough uneven finish. Increase regulating wheel work speed to make wheel act softer.

Remove or add links from or to chain until setting is correct. Before stopping machine run grinding wheel without coolant long enough to throw all water troubleshoiting of wheel. Possible corrections are used advisedly here. Hrinding guides parallel to wheel face. Improper work support blades Change blade to a softer material; if tungsten carbide was used, try steel, cast iron or aluminium bronze. Allow grinding stock equal to approximately three times amount of run out.

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Immediately upon receipt, all grinding wheels should be closely inspected for possible damage in transit. Slow down traverse and work speeds, also work pressure. Eject work pieces as soon after trinding as possible. Flats on through feed work caused when it stops rotating between wheels. Run wheel long enough to throw off coolant.

Troubleshooting Tips: Centerless Grinding

If using soluble oil, use thinner coolant, add soda, or if necessary filter coolant. Flush guards and wheel after each truing. Increase number of passes. Wheel forced on collet when mounting. Reset gib on truing device.

Regardless, new wheels should be run at full operating speed for at least a minute before grinding any work. Eliminate cause of side strain on ejector mechanism. Increase soda or decrease oil content of coolant when using soluble oil.

Work support blade too thin Use a heavier blade. Type of wheel incorrect for particular job. Even spiral lines on work piece whose lead corresponds to feed rate. Rough grind with more and smaller cuts, or use harder wheel for roughing. Keep flange screws tight at all times. A Centreless grinder is not designed as a straightening machine although it will remove slight kinks.

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Grinding Troubleshooting

When shoulder grinding if regulating wheel is forward of grinding wheel, it prevents grinding to shoulder and causes work to pick up or chatter.

Substitute harder grade or finer grained wheel. Move spiral gear on screw to new contact face and lap gears together.

Always balance wheel in following sequence:. Do not dress wheel or change angle of truing attachment.

Determine whether caused by type of wheel, dull diamond, dirty or too strong a coolant. Scratches appear irregularly Increase tgoubleshooting dresser’s setting angle Decrease the infeed rate and traverse feed rate Clean around the Coolant Back to Top. Use plenty of coolant for dressing and grinding.

Centreless Grinding Troubleshooting – Midland Abrasives

Otherwise moisture concentrated at bottom will cause unbalance. Stock removal too heavy on roughing cuts. Lower work support blade.