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ISO Designation of Grinding Wheel

Abrasive mate...

Question

Abrasive material used in grinding wheel selected for grinding ferrous alloys is

A

S i C

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B

Diamond

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C

A l_{2} O_{3}

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D

Boron carbide

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Solution

The correct option is C $A l_{2} O_{3}$
$A l_{2} O_{3}$

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Similar questions

(A)

: Grinding needs higher specific cutting energy than milling.
Reason

(R)

: Milling cutter material is harder than abrasive grains

Q. A specimen is being grinded on a surface grinder with grinding wheel speed of 1600 m/min, and workpiece speed of 25 mm/min, grinding wheel diameter of 200 mm, grinding depth of cut of 0.025 mm. Take transverse feed of workpiece = 4.4 mm/pass and specific cutting energy =

2200 J / m m^{3}

. Assume that pitch of grits at periphery of grinding wheel is 12 mm, the factor for negative rake angle of abrasive grains as 5. Mean grinding power in above operation will be___kW

Q. If the abrasive grain is viewed as a cutting tool, then which of the following represents the cutting parameters in common grinding operations?

Q. The base of a brass bracket needs rough grinding. For this purpose, the most suitable grinding wheel grade specification is

Q. Match the following

	Group I		Group II
P.	Dressing	1.	Blunting of grinding wheels
Q.	Loading	2.	Shaping of grinding wheels
R.	Glazing	3.	Sharpening of grinding wheels
S.	Trueing	4.	Clogging of grinding wheels

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