High-speed, low-damage grinding of advanced ceramics Phase 1. Final report

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Description

In manufacture of structural ceramic components, grinding costs can comprise up to 80% of the entire manufacturing cost. Most of these costs arise from the conventional multi-step grinding process with numerous grinding wheels and additional capital equipment, perishable dressing tools, and labor. In an attempt to reduce structural ceramic grinding costs, a feasibility investigation was undertaken to develop a single step, roughing-finishing process suitable for producing high-quality silicon nitride ceramic parts at high material removal rates at lower cost than traditional, multi-stage grinding. This feasibility study employed combined use of laboratory grinding tests, mathematical grinding models, and characterization of resultant ... continued below

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115 p.

Creation Information

Kovach, J.A. & Malkin, S. March 1, 1995.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 11 times . More information about this report can be viewed below.

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  • Kovach, J.A. Eaton Corp., Willoughby Hills, OH (United States). Mfg. Technologies Center
  • Malkin, S. Univ. of Massachusetts (United States)

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Description

In manufacture of structural ceramic components, grinding costs can comprise up to 80% of the entire manufacturing cost. Most of these costs arise from the conventional multi-step grinding process with numerous grinding wheels and additional capital equipment, perishable dressing tools, and labor. In an attempt to reduce structural ceramic grinding costs, a feasibility investigation was undertaken to develop a single step, roughing-finishing process suitable for producing high-quality silicon nitride ceramic parts at high material removal rates at lower cost than traditional, multi-stage grinding. This feasibility study employed combined use of laboratory grinding tests, mathematical grinding models, and characterization of resultant material surface condition. More specifically, this Phase 1 final report provides a technical overview of High-Speed, Low-Damage (HSLD) ceramic grinding and the conditions necessary to achieve the small grain depths of cut necessary for low damage grinding while operating at relatively high material removal rates. Particular issues addressed include determining effects of wheel speed and material removal rate on resulting mode of material removal (ductile or brittle fracture), limiting grinding forces, calculation of approximate grinding zone temperatures developed during HSLD grinding, and developing the experimental systems necessary for determining HSLD grinding energy partition relationships. In addition, practical considerations for production utilization of the HSLD process are also discussed.

Physical Description

115 p.

Notes

OSTI as DE95011241

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  • Other Information: PBD: Mar 1995

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  • Other: DE95011241
  • Report No.: ORNL/SUB--92-SL807/1
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/67258 | External Link
  • Office of Scientific & Technical Information Report Number: 67258
  • Archival Resource Key: ark:/67531/metadc707354

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Creation Date

  • March 1, 1995

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • May 2, 2016, 3:51 p.m.

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Kovach, J.A. & Malkin, S. High-speed, low-damage grinding of advanced ceramics Phase 1. Final report, report, March 1, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc707354/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.