Blum-Novotest, Inc. Introduces the TC64-RG: Roughness Gauge for Precise Automated Surface Finish Analysis on CNC Machining Centers
Blum-Novotest, Inc. recently introduced a new surface roughness gauge that represents a quantum leap in the field of machine-integrated quality monitoring. In the past, a reliable method of surface finish analysis could only be performed post machining, which meant the machining process must stop in order to analyze the parts finish, either in a CMM or by manual inspection. Then, if during inspection, rework was deemed necessary, the part would either be hand finished or returned to the machine for machining, in which resetting the part in its original orientation could introduce more complications. If not reset correctly, new defects would be introduced into the surface finish.
BLUM’s TC64-RG was developed to resolve this issue and meet the need of various manufacturers wanting to check part surface finish before removing the part from their CNC machining center. With a special stylus and the gauge’s integrated Digilog-technology, a technology that allows analogue scanning of the part; the gauge can accurately determine a part’s surface “roughness” with the part in its original orientation, thereby eliminating resetting of the part.
In addition to allowing automation of surface finish, BLUM’s new Roughness Gauges (RG) allow inspection of surfaces in various axes, unlike conventional profilometers that are extremely limited in analyzing complex surfaces. This is most apparent on 5-axis machines, where BLUM’s RG utilizes the machine axes to maintain stylus-to-part surface perpendicularity, allowing surface analysis on various contoured planes and profiles. This also allows for recording the Ra, Rz, and Rmax values at 1Khz per second in real time at speeds 18x faster than conventional methods while maintaining micron accurate results and repeatability.
This provides manufacturers with an automated means of holding specific tolerances in their surface finish without manual interruption and allows for immediate rework where necessary, thus eliminating additional steps in the process. The operator will now be able to correct these issues before the process gets out of control.
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