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Repair & dynamic balancing of engine crankshaft

Repair and Dynamic Balancing Of Engine Crankshaft

A crankshaft is a shaft driven by a crank mechanism, consisting of a series of cranks and crankpins to which the connecting rods of an engine is attached. It is a mechanical part able to perform a conversion between reciprocating motion and rotational motion. In a reciprocating engine, it translates reciprocating motion of the piston into rotational motion.

Dynamic balancing as per IS1940/1 at Grade G1

Diameter : 350 mm

Weight : 3000 kg

Length : 1950 mm

Speed : 500 RPM

Scope Of Work

Repairing of engine crankshaft in process

Set-up of job on dynamic balancing machine

Polishing of crankshaft with 400 grit sandpaper

Fine finishing with polishing paper

Runout check for main journal & crank pin

Ultrasonic test being carried out

Surface roughness is measured

Hardness testing is carried out

Job ready for dispatch

Process followed is briefed below:

Step:1

Repairing of engine crankshaft in process

Step:2

Set-up of job on dynamic balancing machine

Step:3

Polishing of crankshaft with 400 grit sandpaper

Step:4

Fine finishing with polishing paper

Step:5

Runout check for main journal & crank pin

Runout check report

Runout measurement readings

Step:6

Ultrasonic test being carried out

Step:7

Surface roughness is measured

Surface roughness report

Step:8

Hardness testing is carried out

Initial Reading

Final Reading

Step:9

Job ready for dispatch

Case Study

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