Furnace Brazing & Cast Iron Fusion Welding

Cracked Crusher Flywheel Brazing Repair (PDF - 5.79 MB)

At LOCK-N-STITCH Inc. we offer proprietary furnace brazing and cast Iron furnace brazing processes that rely on high temperature preheating of cast iron parts prior to the welding process. Furnace brazing requires 1000 °F. and cast iron fusion welding requires 1500 °F. Both processes utilize acetylene torch methods. We never arc weld on cast iron. Arc welding with nickle electrodes made by all manufacturers will only cause more damage by creating even more cracks than there was before the weld attempt plus the cast iron will become so hard it will not be machinable. Failed arc-welded castings will always cost more to repair and often cannot be repaired. Without high temperature preheat in an oven environment, welding cast iron usually results in disaster.

We provide a variety of additional services such as inspection, machining, metal stitching, non-destructive testing, failure assessment, and thread repair.

We are ISO 9001:2008 certified and work on all castings including automotive engines (high-performance and antique), compressors, ship engines, small diesel engines, earth-moving equipment, gears, pressure vessels, stamping presses, stationary engines and turbines for a variety of customers around the world. Our expertise extends to a range of industries, including but not limited to agricultural, automotive, manufacturing and remanufacturing, trucking, locomotive, marine, mining and oil and gas.

To learn more about our fusion welding and furnace brazing capabilities please see the table below or contact us directly.

Fusion Welding and Furnace Brazing Capabilities

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