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Manufacturing And Production Technology

Manufacturing And Production Technology
Soft materials can not be economically ground due to

Low work piece stiffness
Frequent wheel clogging
Rapid wheel wear
High temperature involved

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Manufacturing And Production Technology
A hole is of dimension φ = 9 ₊0⁺⁰∙⁰¹⁵ mm. The corresponding shaft is of dimension φ = 9 ₊0.001⁺⁰∙⁰¹⁰ mm. The resulting assembly has

Loose running fit
Close running fit
Transition fit
Interference fit

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Manufacturing And Production Technology
Small nose radius

Results in excessive stress concentration and greater heat generation
Produces chipping and decreases tool life
Decreases tool life
Increases tool life

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Manufacturing And Production Technology
In gear hobbing

Neither hob nor gear blank rotates
Only gear blank rotates
Only hob rotates
Both hob and gear blank rotates

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Manufacturing And Production Technology
Twist drills are made of

Either (A) or (B)
Stainless steel
Carbon steel
High speed steel

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Manufacturing And Production Technology
The floating position of the holding fixture in a rotary transfer device is used to

Improve upon the acceleration and deceleration characteristics
Reduce the cycle time
Reduce the tendency to over-index
Improve the accuracy of location

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