Improving applied roughness measurement of involute helical gears

Koulin, G; Zhang, J; Frazer, R C; Wilson, SJ; Shaw, Brian

doi:10.1088/1361-6501/aa8dd6

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…In addition, the measurement is conducted individually for each gear tooth with the index motion, and the measurement results are also output individually, and it takes time to measure all the teeth. In order to solve these problems, the development machine uses the three-dimensional scanning probe mentioned in the previous section to synchronize the movement of the probe in the radial direction and around the spindle axis so that the stylus tip does not detach from the gear surface to be measured [2]. The schematic diagram of the measurement is sown in Fig.3.…”

Section: Whole Outline Scanning Measurementmentioning

confidence: 99%

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Whole outline scanning measurement of internal gear by using CNC gear measuring machine

et al. 2019

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A three-dimensional probe is mounted on a specialized gear measuring machine whose measurement target is limited on the working flanks. The newly developed measuring machine has a coordinate measuring mechanism, aiming to be a highly versatile and relatively inexpensive measuring machine. According to our previous research, in addition to the working tooth surface, shape data of the root, bottom and tip profiles can be acquired with a single measurement operation. However, the target object for which this developed method has been applied was only the external cylindrical gear. In this paper, we applied and expanded the development method to the internal cylindrical gear and the evaluation of the axial displacement in the same cross-sectional scanning of the internal helical gear are performed.

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Section: Whole Outline Scanning Measurementmentioning

confidence: 99%

“…In manufacturing gears, machining and inspection are inextricably linked together, and to improve the accuracy of gears, it is essential to improve not only machining technology but also high-precision inspection technology [1] [2]. The purpose of this research is to develop a versatile and relatively inexpensive gear measuring machine.…”

Section: Introductionmentioning

confidence: 99%

Whole outline scanning measurement of internal gear by using CNC gear measuring machine

et al. 2019

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“…There are a number of challenges and limitations associated with comparison of the GMM with SMI measurements [9,10]. The references provide a detailed discussion of the development and application of such a comparison method.…”

Section: Reference Measurement Systemmentioning

confidence: 99%

A method to quantify waviness measurement capability of a gear measurement machine

Reavie

Koulin

Frazer

et al. 2019

Surf. Topogr.: Metrol. Prop.

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Waviness is an important surface parameter in gears and the capability of measurement machines to capture this is largely unknown. The wavelengths of interest relate to transmission error (TE) and contact stress, both of which depend on a pair of gears and their geometry. TE directly relates to the noise and vibration during operation and contact stress drives failure of gear teeth. Accurately capturing the waviness wavelengths related to these parameters is consistent to geometric product specification (GPS) which requires: (i) specification of functional parameters (ii) description of how to measure each parameter and (iii) evaluation of parameter measurement uncertainty. A GPS compliant method is outlined with verification by two workpiece-like artefacts; one gear finished by surface grinding and one finished by a superfinishing process. The method evaluates a gear measurement machine (Klingelnberg P65) against a reference surface measurement instrument (Talysurf Intra 50). Results show that waviness measurement depends on measurement speed, probe choice, and strategy relating to different gear manufacturing methods. Actions to improve the characterisation method, such as including other key performance indicators and quantification of uncertainties, are suggested.

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“…Its texture has big impacts on the efficiency of gear boxes, which is why a precise description of profile properties is required. The mechanical power density, running behaviour, noise and the wear of a gear are influenced by the roughness properties of gear flanks [1].…”

Section: Introductionmentioning

confidence: 99%

A Novel Measurement Standard for Surface Roughness on Involute Gears

et al. 2021

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Although manufacturers of coordinate measurement systems and gear measurement systems already provide instruments that enable an end-of-line-monitoring of the roughness properties of gears, the roughness measurement on gear flanks still lacks traceability with respect to the standardised SI-units. There is still a gap between well standardised roughness measurements on planar surfaces and gear measurements on involutes. This gap is bridged by a novel physical measurement standard (PMS), also referred to as material measure, for roughness measurements on involute gears that has been developed at the Physikalisch-Technische Bundesanstalt (PTB). The necessary transformations between the systems of roughness and gear measurements have been implemented. The measurement standard itself represents calibrated roughness values for the parameters Ra, Rz, Rq, Rk, Rpk and Rvk and Mr1 and Mr2. Furthermore, the PMS can be measured both with classic profilometers as well as gear measurement systems with integrated roughness probes.

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Improving applied roughness measurement of involute helical gears

Cited by 5 publications

References 6 publications

Whole outline scanning measurement of internal gear by using CNC gear measuring machine

Whole outline scanning measurement of internal gear by using CNC gear measuring machine

A method to quantify waviness measurement capability of a gear measurement machine

A Novel Measurement Standard for Surface Roughness on Involute Gears

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