Paper Title:
Processing of WC-Co Cemented Carbide Ball by EDR and RDP Lapping Modes
  Abstract

In order to get high precision balls used in oil exactor, Eccentric dual-rotating (EDR) V-groove lapping mode and Rotated dual-plates (RDP) lapping mode are applied for the batch processing of WC-Co cemented carbide balls of Φ35mm. After comparing two innovated modes, firstly EDR V-groove lapping mode is used in rough lapping stage for high efficiency, and then semi-finishing lapping stage, finishing lapping stage and polishing stage are carried out by RDP lapping mode. Through changing the processing parameters legitimately, including abrasive grain, adjustable rotating velocity and load, the rational course and parameters are defined, and WC-Co cemented carbide balls of Φ35mm satisfy the end products’ demand which means the sphericity is less than 1μm and the roughness of surface (Ra) is better than 50nm, so these balls can be applied in one-way hydraulic value used in oil exactor.

  Info
Periodical
Advanced Materials Research (Volumes 76-78)
Edited by
Han Huang, Liangchi Zhang, Jun Wang, Zhengyi Jiang, Libo Zhou, Xipeng Xu and Tsunemoto Kuriyagawa
Pages
258-263
DOI
10.4028/www.scientific.net/AMR.76-78.258
Citation
J. L. Yuan, F. Yang, Z. W. Wang, K. F. Tang, J. J. Chen, "Processing of WC-Co Cemented Carbide Ball by EDR and RDP Lapping Modes", Advanced Materials Research, Vols. 76-78, pp. 258-263, 2009
Online since
June 2009
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Price
$32.00
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