Work speed of circular electrode of 220 mm diameter for carrying out seam welding at 4 welds per cm on 1.6 mm thick mild steel tube. Welding cycle consists of 3 cycles ‘on’ and 2 cycles ‘off’ Power supply is at 50 Hz. Calculate R.P.M. and energy requirement of the above circular electrodes assuming effective resistance between electrodes as 100 ohm.

Manufacturing And Production Technology
Work speed of circular electrode of 220 mm diameter for carrying out seam welding at 4 welds per cm on 1.6 mm thick mild steel tube. Welding cycle consists of 3 cycles ‘on’ and 2 cycles ‘off’ Power supply is at 50 Hz. Calculate R.P.M. and energy requirement of the above circular electrodes assuming effective resistance between electrodes as 100 ohm.

22 rpm, 600 joules

6.8 rpm, 6 joules

2.17 rpm, 600 joules

5.03 rpm, 600 joules

22 rpm, 600 joules

6.8 rpm, 6 joules

2.17 rpm, 600 joules

5.03 rpm, 600 joules

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Manufacturing And Production Technology
Cold working of steel is defined as working

At its recrystallisation temperature

Above its recrystallisation temperature

At two thirds of the melting temperature of the metal

Below its recrystallisation temperature

At its recrystallisation temperature

Above its recrystallisation temperature

At two thirds of the melting temperature of the metal

Below its recrystallisation temperature

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Manufacturing And Production Technology
In American Standard Association (ASA) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be

5°

10°

8°

6°

5°

10°

8°

6°

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Manufacturing And Production Technology
In a shaper

Tool is stationary and work reciprocates

Work is stationary and tool reciprocates

Tool moves over stationary work

Tool moves over reciprocating work

Tool is stationary and work reciprocates

Work is stationary and tool reciprocates

Tool moves over stationary work

Tool moves over reciprocating work

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Manufacturing And Production Technology
In determining the various forces on the chip, Merchant assumed that the

Cutting velocity remains constant

Only continuous chip without built-up-edge is produced

Cutting edge of the tool is sharp and it does not make any flank contact with the workpiece

All of these

Cutting velocity remains constant

Only continuous chip without built-up-edge is produced

Cutting edge of the tool is sharp and it does not make any flank contact with the workpiece

All of these

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Manufacturing And Production Technology
In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth is called

Land

Fillet

Gash

Face

Land

Fillet

Gash

Face

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Manufacturing And Production Technology

Manufacturing And Production Technology Cold working of steel is defined as working

Manufacturing And Production Technology In American Standard Association (ASA) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be

Manufacturing And Production Technology In a shaper

Manufacturing And Production Technology In determining the various forces on the chip, Merchant assumed that the

Manufacturing And Production Technology In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth is called

Manufacturing And Production Technology
Cold working of steel is defined as working

Manufacturing And Production Technology
In American Standard Association (ASA) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be

Manufacturing And Production Technology
In a shaper

Manufacturing And Production Technology
In determining the various forces on the chip, Merchant assumed that the

Manufacturing And Production Technology
In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth is called