Centerless Grinding: Correcting Bar Surface Errors

Centerless grinding, without much of a huge cost preparation, can eliminate errors in workpieces thus leaving your bars perfectly finished – such a cost-effective operation for most operators!

It has never been a new knowledge for most metal workers that centerless grinding really has the edge to eliminate errors and bring surface perfection in every bar. The ability of centerless grinding machines to grind both soft and brittle bars is an additional point. It also requires less hassle upon setting up for faults caused by fixing are eliminated in the process. Thus, with the use of automation, loading and unloading of workpiece is simple and smooth flowing. All is done through a single pass in which a process of loading the bars into the machine and flying them out of the opposite side is running, leaving them fully finished and polished.

For two kinds of grinding process, there are a lot of advantages when it comes to finishing:

Through feed grinding/ thru-feed

The problem in grinding long round bars would never be that difficult. With the help of automation, the long bar pieces will be pulled past by the regulating wheel and let the grinding wheel do the abrasive part cutting. Therefore, correcting surface errors in long bars is a surefire part of the process – eliminating unwanted parts and cutting away rust.

In-feed grinding

When it comes to grinding complex parts also, centerless grinding also performs its in-feed type or the plunge grinding. It can’t be avoided that a workpiece can have a lot of outer diameters over the length. In line with this, only one possible part can be ground in most cases over the length. But with infeed type, an operator can choose whether to grind only one small part or the total work piece.

Advantages of Centerless Grinding

  • The use of continuous thru-feed grinding allows no time loss in changing the workpiece
  • Even long work pieces with small machines can be handled
  • It can also achieve very high grinding wheel rotation speed

How it eliminates errors

The error in centering is eliminated in the course, that’s why it’s “centerless”. Thus, there exists a “floating” condition along the course of grinding. This unique process that centerless grinding has allows a less stock needed and longer wheel life. In addition, by the use of attachments or gravity chute, the process itself can also grind large quantities of an even smaller sized work.

Although there is an apparent lack of work holding in the process, centerless grinding has sure way for the bar to be rigidly supported under the grinding cut thus, allowing an optimum surface polish and finish. Thus, much likely to defy our first impression about the metal cutting.

With the fine ability of surface polish and finish by centerless grinding, it can also bring back the original appearance of an old bar. It can do extensive cleaning, getting rid of rust and perfecting deformed parts.

The great fact about centerless grinding is that degree of error is reduced by half. The formula there is that part removal is done and measured on the diameter rather than the radius. It is considered as a mature process since it has fewer wear surfaces in the machine and automatic lubrication. This is the reason why maintenance is just a small part of the process and not really a big inclusion in the total cost. In other words, it is a much cost-effective operation!

Grinding parts in a most-efficient and cost-effective way is possible! Feel free to fill out our free quote now! Or give us a call at 708-442-7100.