Rockwell Testing

Principal of the Rockwell Test

1. The indenter moves down into position on the part surface

2. A minor load is applied and a zero reference position is established

3. The major load is applied for a specified time period (dwell time) beyond zero

4. The major load is released leaving the minor load applied

The resulting Rockwell number represents the difference in depth from the zero reference position as a result of the application of the major load.