Centerless grinding makes it possible for grinding parts to their custom sizes and shapes with the proper implementation of tooling control and support.
Custom machining parts is really important in high performance application. The operation, however, really takes a complex process. Grinding bars to shape it and remove unnecessary parts for example, has taken the strategy of boring holes through the center of the bar to hold it accurately for precision grinding. The challenge here is taking the proper position and control of the bar (workpiece) in the grinding machine.
Centerless grinding, without a doubt, is often misunderstood by everyone. What separates it from other machining strategies is that it requires no boring of holes through the bar to keep it in a tight and secure position.
Centerless grinding has this three-point positioning method that makes it possible for grinding parts to their custom sizes and shapes. For grinding custom steel pieces, centerless grinding is perfect for keeping the workpiece intact during the abrasive metal removal to give the final product its required surface finish.
For some reason, centerless grinding is often thought as an OD grinding or the outside diameter; however, central support is not required in keeping the workpiece intact in its position.
Controls in Grinding Custom Steels
The proper positioning of tools and fixtures is highly critical to the surface finish and diameter tolerance of the bar. Thus, there really is a need of implementing special attention to gap, dressing, and position control for the grinding wheel. The grinding operation allows this following controls:
Varying grinding wheels’ size and their abrasive grains
- There really is a need to vary the size of the grinding wheels to control the cutting forces and the surface finish. The continuous abrasive metal removal causes the porosity of the operation which is why coolants solution is applied throughout the process.
Consistent controlled gap between wheels
- Consistency in gap between wheels is crucial to the bar’s final shape and cut. If it is not held in consistent control, this might result to distorted or deformed parts. The right gap control helps to properly switch the wheel speed from approach speed into the feed rate for optimizing the cycle time.
Constant dressing of abrasive grains
- The continuous grinding process makes the wheels dull so constant dressing is important to achieve consistent surface polish and successive cut. Diamond abrasive grains are highly recommended in forming highly accurate wheel shapes for meeting tight tolerances to produce complex part geometries.
For whatever metal or steel pieces, whether small or large, centerless grinding makes it possible for metalworkers to achieve the desired and highly precise cut in custom steel sizes that meet the required tolerance and roundness. Big industries like the automotive, aircraft, military, and even manufacturing require and use centerless grinding for making customized steel pieces for varying high performance application.
Are you needing centerless grinding for your custom parts? Call us or feel free to get our Free Quote.