Metal Removing Thermal Stress Influences on Hardness and Tensile Strength Properties of Machined Items for Aeronautic Applications
Journal: International Journal of Scientific Engineering and Science (Vol.1, No. 7)Publication Date: 2017-08-15
Authors : Shehret Tilvaldyev; Arturo Paz Pérez; Manuel Alejandro Lira Martínez; Cardenas Dominguez Itzel Daniela;
Page : 75-80
Keywords : Hardness property; heat in grinding zone; tensile strength property.;
- Metal Removing Thermal Stress Influences on Hardness and Tensile Strength Properties of Machined Items for Aeronautic Applications
- OPTIMIZATION OF PROCESS PARAMETER FOR STIR CASTED AA6063 METAL MATRIX COMPOSITE ON HARDNESS, TENSILE STRENGTH AND IMPACT ENERGY
- Effect of Chilling on Soundness, Micro Hardness and Ultimate Tensile Strength of Nickel Alloy-Fused Silica Metal Matrix Composite
- NRICHMENT OF FLUX BY NICKEL TO IMPROVE TENSILE STRENGTH AND HARDNESS IN SUBMERGED ARC WELDING
- Tensile and Hardness Properties of Cast 6063 Aluminium Rods produced from Sand and Squeeze Casting Moulds
Abstract
The heat of metal removing process has critical influences on properties of machined item and can cause thermal damage and conflicts directly with the demand for increased production efficiency. The grinding process requires a very high input of energy per unit volume of material removed. A significant portion of the energy is converted to heat, which is concentrated within the grinding zone, thereby leading to high temperatures and possible thermal damage to the work-piece. The effect of grinding-induced heat on Hardness and Tensile strength of machined steel in metal removing process has been investigated using manufacturing equipment, temperature controlling methods, mechanical properties testing machines and microscope (ESM) for laboratory experiments. The relationship between the residual thermal stresses in the surface region, caused by grinding, and changes of some mechanical properties of the machined steel is elucidated.
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Last modified: 2017-09-07 23:23:11