chain-making machines and laser systems

In precision machining for third parties, operational flexibility and the reliability of welding systems are a strategic competitive advantage.

Meccanica Tecnica s.r.l. of Bastiglia (MO), a leading company in the precision engineering sector, needed to acquire high-performance industrial welding machines for the maintenance and repair of:

• Industrial Molds
• Bearings, shafts, and valve seats
• Turbine blades and high-stress components

The company’s primary goal was to cover the widest possible range in terms of the dimensions, weight, and geometries of hardened steel parts. To meet these manufacturing challenges, SISMA laser welding machines proved to be the winning technological choice.

The Advantages of Laser Welding

Laser welding offers significantly greater structural and operational benefits than traditional technologies, making it ideal for mold maintenance and micro-welding:

• Minimal heat input: During the deposition of the cladding material, the area affected by heat is extremely small.
• No deformation: deformation of the workpieces and metallurgical damage are either nonexistent or negligible.
• High mechanical strength: excellent structural integrity and high processing speed.
• Ultra-precise weld bead: ability to create millimeter-precise joints (down to a few tenths of a millimeter).
• Material versatility: excellent weldability on steel, aluminum, titanium, bronze, and copper alloys, as well as the joining of dissimilar materials (e.g., steel and copper).
• Cost-effectiveness: reduction in unit welding costs for high-volume production.

The SISMA Solution: Versatility and Software Automation

SISMA industrial laser welding machines are designed to ensure maximum accessibility even on the most complex geometries. They allow for easy operation in recesses, deep holes, sharp corners, edges, and grooves.

Using the intuitive software developed by SISMA, operators can create programmed welding paths that follow specific profiles and/or paths with regular shapes, such as circles or lines repeated at set intervals, etc.

Following a detailed analysis of the production processes and consultation with the SISMA engineering team, Meccanica Tecnica s.r.l. selected two fiber-based laser systems to cover the entire range of required machining operations:

SWA 450F

A fiber laser system specifically designed for mold repair and maintenance, ideal for depositing filler material on large surfaces and components.

SWT 450F

A high-precision laser welder, perfect for both general maintenance and precision micro-welding.

Why Choose Fiber Laser Technology Over Lamp-Based Lasers?

The integration of fiber-optic light sources into SISMA machines offers immediate operational benefits:

• Zero maintenance: drastic reduction in downtime and operating costs.
• Reduced focused spot: extremely small beam diameter, essential for corner joints and micro-welds.
• Higher average power: significant increase in deposition rate and welding speed on steel.

The SWA 450F and SWT 450F are machines that offer a high level of automation, but thanks to advanced visual inspection systems and an intuitive software interface, they are easy to use even for operators who are not highly specialized.