Internal Grinding – the Basics

Internal Grinding – the Basics

Inside diameter or internal grinding is different than outside diameter finishing. For example, OD grinding can be done with a centerless process, but since ID work is inside material, special care and equipment must be used. Here are some of the basics to remember before grinding interior surfaces.

Inspect Your Wheel

A wheel may look fine, but under closer inspection, you may notice fine cracks or other types of damage. Cracks can be very dangerous because they may get worse and cause material to come loose from the wheel. Also, a damaged wheel can ruin a workpiece, and if you are working with expensive metal, this is a loss you really can’t afford.

Working with Multiple Users

If you are not the only one in the shop using the internal grinding machine, you must carefully check all the settings before using. For example, someone may have changed the headstock or spindle speed or set the machine up to create a slight taper. If you simply put your workpiece into the machine and turn it on, you could end up with some major problems. Check every setting before you begin.

Getting Things Together

You may need several tools for setting up the grinder. You also might need to use a diamond dressing stick. If you don’t have all the things ready beforehand, you could be searching all over the shop, and this can lead to frustration.

Consider Partnering with another Shop

Maybe your shop doesn’t do a great deal of precision internal grinding. You might concentrate on centerless or flat grinding methods, and it may be best to go to an outside shop with special equipment for the job. They can take care of all your ID grinding needs and can give you many other kinds of grinding services. This can greatly increase your shop efficiency and help you keep up with the competition.

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