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INDUSTRY DEFINED PROBLEM STATEMENT

FORM

Distortion In Welding

DISCIPLINARY | INTER-DISCIPLINARY :- Disciplinary

DISCIPLINE :-Mechanical

Problem Summary

In Vacation we visit the company H.L.E.Engineers Pvt. Ltd.

Situated near Maroli. It is totally mechanical based company. In this

company, their main product is Pressure Vessels. They mainly

produce Agitated Notch Filter (ANF) and Rotary Vaccum Paddle

Drayer (RVPD). Sometime on order of customers they also make the

Reactor.

In this company we find the problem of DISTORTION during

welding and we select it as project.

When any type of welding is done on the material the

distortion is take place in material. It is impossible to totally remove

the effect of distortion, but it is minimized by changing the sequence

and pattern of welding on the material. In this Project, we can define

the some of techniques for minimized the Distortion.

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channels due to distortion thestraightness of flat plate is

change So in the filter the heating process is not done

e uilibrium because of the distance between plate & rotor is

not same at everywhere So here we try to usesome welding

techniques to minimized distortion.

To makeshell, When the bend plate is welded to make it shellthe ovality iscreated due to the distortion . So the distance

between rotor & shell is also different at everywhere. This

defect also produces unequilibrium heating in product in the

shell. This problem is also minimized by welding techniques. So

we try to develop the technique.

In theA F, when they weld the DischargeValve on theshellthe distortion is takes place. From the dischargevalve the dry

and filter solid product is discharge. In dischargevalve the plug

with O ring is fit with theshell. So if due to distortion the

dimension ischange on both dischargevalve and shell. So thereis thechance of leakage of the

product. So to remove theeffect of

Distortion machining process is

required. But the processcannot

becarried out on Lathe or any

other machine. So we try to

develop the portable m/c to

remove theeffect of distortion by

machining the inner diameter of

Dischargevalve.DischargeValve

Shell

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