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RISControl of Surface Finishing Residual Stresses in Magnetic Recording Head Materials
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Surface finishing of magnetic recording head materials, such as ferrites, by diamond grinding and lapping results in a residual compressive stress on the surface. Residual stresses alter the ...
Friction and Wear of Ceramics for Magnetic Recording Applications: Part I—A Review
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The friction and wear of ceramics under lightly-loaded, marginally-lubricated sliding-contact conditions are reviewed. The mechanism of ceramic friction and wear and the factors influencing them ...
Friction and Wear of Ceramics for Magnetic Recording Applications—Part II: Friction Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Friction and wear experiments have been conducted under lightly loaded conditions (less than 0.1 MPa) on a number of single crystal and polycrystalline ceramics in sliding contact against magnetic ...
Precision Crack-off of Brittle Materials
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A phenomenon called the “pinch-off effect” discovered by P. W. Bridgman about seventy five years ago that constituted a mode of failure in his high pressure equipment may be used to advantage ...
Direct Observations of the Chip-Tool Interface in the Low Speed Cutting of Pure Metals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental study of the chip-tool interface and its evolution in the low speed cutting of metals has been carried out. Specially prepared transparent glass and sapphire tools have been ...
A Model for the Contact Conditions at the Chip-Tool Interface in Machining
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A high-speed photographic study has been made of the chip-tool interface and its evolution when cutting pure metals with optically transparent sapphire tools. The use of a high speed camera ...
Determination of Surface Residual Stresses in Machined Ceramics Using Indentation Fracture
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Machining produces surface residual stresses which significantly influence the strength and wear resistance of ceramic components. As new methods are developed for machining ceramics, a quick and ...
Comparison of Grinding and Lapping of Ferrites and Metals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Mechanical finishing of ferrite materials used in magnetic storage systems are found to have a shallow magnetically inactive layer due to residual elastic stress in the surface. The residual ...
Morphology of Ground and Lapped Surfaces of Ferrite and Metal
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Scanning electron microscope pictures of ground and lapped ferrite (sinfered magnetic ceramic) and steel surfaces and chips are studied and compared. These reveal considerably more plastic action ...
Grinding Temperatures for Magnetic Ceramics and Steel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Grinding temperatures are measured using an infrared sensor in ferrite and steel. For reference purposes, temperatures are also measured in a reduced model for grinding which consists of a ...