Unformatted text preview: amounts of material from the starting work part. It creates a shape close to the desired product, using high feeds and depths with low speeds. Finishing on the other hand, completes the part using low feeds and depths, and high cutting speeds. 21.9 – An orthogonal cutting operation uses a wedge shaped tool in which the cutting edge is perpendicular to the direction of the cutting speed. As the tool is forced into the material, the chip is formed by shear deformation along a plane. 21.13 – Friction force and shear force 21.18 – The term size effect in metal cuttings refers to the premises that shear stress increases with increase in strain rate. Also, the specific energy increases with decrease in deformation size. Multiple Choice 21.5 – C 21.9 – A & B 21.11 – B Problems...
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This note was uploaded on 03/30/2012 for the course IDM 331 taught by Professor Jones during the Spring '12 term at Missouri State University-Springfield.
- Spring '12