A fixture for accurately locating hardness test points on internal gear teeth enables Rockwell tests to be made precisely and repeated
A fixture for accurately locating hardness test points on internal gear teeth has been developed by Indentec.
Designed for helical teeth on ring gears, the fixture enables Rockwell tests to be made precisely and repeatedly on test areas as narrow as 1.25mm.
The ring gear is mounted in a vee block on the machine's test table and the spaces between the target tooth and its neighbours are probed by conical pins.
This action rotates the gear, which is then clamped to position the test point beneath the machine's nose mounted indenter.
If required, a series of hardness tests can be carried out along the tooth length.
According to Indentec, the fixture not only heightens repeatability but also improves the testing process and saves time by eliminating the need to position awkwardly narrow test areas by hand.
The fixture is used on a standard Indentec digital Rockwell tester with a built-in touchscreen for control, monitoring and data processing.
