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  2. Applications
  3. Fixture construction
    4. Welded joints








Background

The fixture determines the quality of the seam

A significant proportion of weld irregularities are not caused by incorrect welding parameters, but by a component that deviates from its specified condition. No matter how precise the welding procedure is — if the component is positioned differently in every cycle, the result will vary.

For designing and fixture construction, this means that clamping, positioning and accessibility are quality-critical decisions, not a minor matter.

  • 01 Root gap and rib spacing vary across the range
  • 02 Edge misalignment due to parts not being centred
  • 03 Forced position instead of the WPS-qualified position
  • 04 Clamping devices cover the seam and the inspection access point
Requirements

Six requirements for welded fixture contruction





Process

Standard components throughout the welding process
Products

Products for welding fixture construction




For the design

Integrate the function directly into the welded construction



Not every function needs to be constructed. Weld-on standard components provide stop and hinge functions with defined geometry and documented specifications within the assembly — this saves on drawing, production contracts and an additional item in the directory.

  • Weld-on D-rings

    Compact design, loadable from all sides, no additional threads — for the transport of heavy welded assemblies.

  • Weld-on hinges

    For hatches, doors and panelling on steel frame and housing structures.



Selection aid

Which element for which task?

































TaskProduct group
Maintain the gap and edge offsetPositioning elements (03000), stops, rest pads
Enable welded positionsAngle plates, clamping cubes, tooling plates (01000)
Quick fixation, keep seam accessibleToggle clamps (05000)
Flat clampingClamp straps and claw clamps (04000)
Control stress, maintaining tolerance classLocating pins, positioning elements
Reduce set-up times, maintain zero pointsZero-point clamping systems (42000)
Set up the control fixtures3 axis clamping system for tooling plates (41000)
Weld on the fittingWeld-on hinges (27000)
Transport assembliesWeld-on D-rings (07000)




Standards

What standards mean for fixture selection
Service

From selection to design

Frequently asked questions