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Case Study
TRANSPORT SECTOR

Joining

Industry Type
Transport

Product Group
Lotherme

Our solution

Product
Lotherme 352

Size (mm)
3.15/ 4.0

Current (AMPs)
100/ 130

Qty. (Kgs)
16

ANALYSIS

EQUIPMENT
Crane 25 Tones

COMPONENT NAME
Gear wheel

TYPE OF PROBLEM
Fabrication

PROBLEM DUE TO
Fatigue

BASE METAL
EN 8 & EN 9

COMP. WEIGHT (kgs)
200

DIM ENSIONS (mm) W * Outer Dia
140/220 * 760

JOB PICTURES

Gear Wheel Joined by Lotherme 352

Gear Wheel Joined by Lotherme 352

None

None

Procedure

The EN 9 HUB is Welded to EN8 Gear of the 25 T Crane.
EN9 Hub welding was cracking initially.
Then Annealing was done at 750°C by Induction Coil then welding was done.
D.P. Test was done. Component is put in to service and working satisfactorily.

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