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How to prevent distortion in welding?

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Question ajoutée par Mohamed Abdel Raheem Abdel Kader , QC Engineer , Petojet
Date de publication: 2016/02/24

Use proper jigs and fixtures,

Avoid over welding,

Use intermittent welding,

Use as few weld passes as possible,

Use the back step welding technique,

Minimize welding time

Amjad Shaik
par Amjad Shaik , Engineer , Welding and Painting

There are ways to avoid distortion in welding such as

1. Using proper clamps and fixtures.

2. welding technique.

3.avoiding over welding.

 

muthukumar pulamadan
par muthukumar pulamadan , QC INSPECTOR IPING &WELDING , BRUNEL ENERGY SERVICES KUWAIT

DURING WELDING :- AVOID OVER-WELD, USE INTERMITTENT WELD,USE AS LESS WELD PASSES IF APPLICABLE,  PLACE WELD NEAR THE NEUTRAL AXIS, BALANCE WELDS, BACK STEP WELDING, PLANNED WELDING SEQUENCE, STRONG BACK, RESTRAINT.ETC....

Muhammad Mubashar  Raza
par Muhammad Mubashar Raza , Material Controller , Drake and scull international PJSC

Avoid over welding

minimize welding time

proper jigs and fixtures

neutral welding techniques

Rethish Chandran K
par Rethish Chandran K , Site engineer , A.R.K Enterprise

1.Avoid over welding

2.Use intermittent welding

3.Use as few weld passes as possible

4.Place welds near the neutral axis

5.Use the back step welding technique

6.Thermal stress relieving 

7.Alternate the welding sequence

8.Minimize welding time

john joseph bronce
par john joseph bronce , Welder , AG&P San Roque Bauan

FOLLOW THE WELDING PROCEDURE SPECIFICATION, ASSESS THE MATERIAL PROPERTIES AND HEAT RESISTANCE FOR YOU TO ADJUST THE PROCESS AND CURRENT YOU WILL BE USING.THEN IF THERE IS A NEED OF PREHEATING DO IT WITH THE HELP OF THE WPS AND SOME JIGS AND FIXTURES TO HOLD THE WELDMENTS

 

lotfi mrazguia
par lotfi mrazguia , SUPER DUPLEX WELL JUMPER CONSTRUCTION. , Friedlandder Congo

To prevent or minimize weld distortion, methods must be used both in design and during welding to overcome the effects of the heating and cooling cycle. Shrinkage cannot be prevented, but it can be controlled. Several ways can be used to minimize distortion caused by shrinkage:

1.Avoid over welding

2.Use intermittent welding

3.Use as few weld passes as possible

4.Place welds near the neutral axis

5.Use the back step welding technique

6.Thermal stress relieving 

7.Alternate the welding sequence

8.Minimize welding time

vivek shanmugam
par vivek shanmugam , MACHINE OPERATOR , SUPER AUTO FORGE Pvt. Ltd

in this process ,we have to using the various  methods of finding defects process..using that method  to easily find out out the defects from inspetion..its called a welding inspection

Hafiz Muhammad Annus Khan
par Hafiz Muhammad Annus Khan , Site QA/QC Engineer , Formwell Aluminum & Glass LLC

Pre Heating can help minimize distortion where required by WPS

Post Weld Heat Treatment (if required by WPS)

Controlled Heat Input

Use of Proper Jigs & Fixtures

 

Mohamed Abdelbasset Ali
par Mohamed Abdelbasset Ali , Lead Asset Integrity, Inspection &Corrosion , Saudi Basic Industries Corporation - Sabic

Proper heat input

Heat treatment (if needed)

Use restraints

 

Sofuan Ali
par Sofuan Ali , Welding Inspection , Inspection Services & Supplies Engineering(ISSE)

.Place welds near the neutral axis

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