In welded fabrication and steel construction projects made up of multiple parts, one of the most critical pre-production checks is verifying whether the parts interfere with each other. Clash detection performed on a 3D model uncovers assembly problems that could arise on site before production even begins, preventing both time and cost losses.
What Is Clash Detection?
Clash detection (interference checking) is the process of bringing together the parts that make up an assembly in a 3D digital environment to test whether they physically interfere with each other or whether sufficient clearance exists for assembly. This check is especially important on projects with complex geometry or a large number of parts.
Why Should It Be Done Before Production?
Assessments based on 2D drawings may not fully capture the three-dimensional relationship between parts. A design that looks correct in two separate views can still interfere with itself in three-dimensional space. When such errors are only discovered on site after production is complete, the part must be remanufactured or reworked on site — a serious loss in both time and cost.
Applications of Clash Detection
Welded Fabrication Assemblies
In assemblies where multiple parts are joined by welding, checking the access clearance needed for the weld seam on the 3D model allows the welder to work on site without difficulty.
Steel Construction Connection Details
In column-beam connections, bolted joints, and brace details, whether different elements come together at the correct angle and distance is verified on the 3D model.
Moving Mechanisms
In custom machine projects, testing whether moving parts (arms, shafts, covers, etc.) interfere with fixed parts throughout their range of motion is critical to the machine's safe operation.
Key Points in the Clash Detection Process
- Modeling all parts with their actual dimensional tolerances
- Including post-assembly additions such as weld seams and bolt heads in the model
- Simulating the full range of motion for moving parts
- Considering assembly sequence and access angles
Simulating the assembly process step by step — not just running a static clash check — helps identify potential access problems on site in advance as well.
The Cost Impact of Clash Detection
A clash issue discovered after production causes both material and labor losses and delays delivery. Checking on the 3D model before production eliminates most of this cost, ensuring the project is completed correctly the first time.
DMK Makina's Approach to Clash Detection in Design
On welded fabrication, steel construction, and custom machine projects, DMK Makina performs detailed clash detection on the 3D model before moving to production, identifying potential on-site incompatibilities in advance. This approach ensures projects are manufactured correctly the first time, saving customers time and avoiding revision costs.
Serving manufacturers across the Thrace and Marmara regions, DMK Makina provides 3D design support for projects requiring complex, multi-part assemblies, evaluating each project's requirements together with its technical team.