Wear reduction at double face grinding with planetary kinematics

Uhlmann, Eckart; Hoghé, T.

doi:10.1007/s11740-012-0376-8

Cited by 13 publications

(7 citation statements)

References 5 publications

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“…If there is a difference and thus tilt between the ideally flat grinding wheel surface and the longitudinal axis of the measuring system, a compensation line is calculated and the measured values corrected. The use of a 4 th degree polynomial as an approximation of the wheel profile turned out to be sufficiently accurate during measurements and in relation to previously published wear forms [1,3,5,6,10]. By measuring at different angular positions on the grinding wheel, wear characteristics dependent on the circumference can be determined.…”

Section: Determination Of Wear Conditionmentioning

confidence: 78%

“…Microscopic wear in the form of grain blunting and bond failure has a decisive influence on the economic efficiency and workpiece quality of the production process. Both types of wear need to be minimized by suitable dressing processes [5][6][7][8][9].…”

Section: Fundamental Theorymentioning

confidence: 99%

“…Here, the profile height h t over the radial grinding wheel position r t describes the macroscopic wear characteristic based on a coordinate system located on the outer tool Fig. 1 Main components of the machine system for double face grinding with planetary kinematics [5] Fig. 2 Radial wear on lapping wheels [10] radius.…”

Section: Fundamental Theorymentioning

confidence: 99%

“…Due to the process typical kinematics, the workpieces cover different path lengths in the individual areas of the grinding wheels, and the cutting speed depends on the current workpiece location. Using the kinematic models developed by Simpfendörfer [10], Ardelt [3,16,17], Uhlmann et al [5][6][7] and List [1], these values can be calculated for the selected process parameters. Here, during grinding the cutting speed difference in the inner and outer area of the grinding wheels is comparatively higher with v c,diff = v c,max − v c,min = 1.44 m/s compared to the difference in the dressing experiments v cd,diff = 0.27 to 0.70 m/s.…”

Section: %mentioning

confidence: 99%

“…These movements result from the overlapping of the driven grinding wheels, the rotation of the inner pin ring and the eventuating workpiece holder rotation. Due to the planar contact of the grinding wheels, the surfaces of a workpiece are evenly loaded [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Analysis of influencing factors for the dressing process in double side face grinding

Uhlmann

Lichtschlag

2021

Int J Adv Manuf Technol

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In grinding, the design of the dressing process is an essential part of work preparation and restoration of the grinding wheel’s profile and cutting ability. In contrast to most grinding processes, the choice of dressing parameters in double face grinding with planetary kinematics has so far only been experience-based. As a consequence, the dressing process causes a higher degree of tool wear than the machining of the workpieces. A focused design of the dressing process based on a scientific data could help to improve the ecological and the economic efficiency by reducing tool wear and the amount of dressing tools used. In this paper, methods for determining the wear condition and the result of the dressing process, including macro- and microscopic characteristic are presented. This includes a correlation analysis between parameters of wear characteristics and workpiece surface quality. Furthermore, technological investigations are carried out in order to systematically limit the main influencing factors on the dressing process. As a result, the parameters dresser grain size dgd, rotational speed ratio nld and the machined dresser height ∆hd are identified as significant for dressing. The knowledge about their principal influence on the dressing result could provide the basis for further research.

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Section: Determination Of Wear Conditionmentioning

confidence: 78%