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CAD drafting for sheet metal products as per DFMA guidelines reduce TAT by 56%

Mechanical Engineering Case Studies
CAD drafting for sheet metal products as per DFMA guidelines reduce TAT by 56%

Project Overview

Client Profile
Fabricator for sheet metal building products, electrical enclosures and more
Sheet metal fabrication
PDF drawings or hand drawn sketches to share overall design parameters and client requirements
Detailed 3D CAD models, assembly and manufacturing drawings, PDF drawings, 2D AutoCAD files, and DXFs
SolidWorks Logo AutoCAD Logo

Business Needs

  • Meeting the design needs for fabricating a wide range of product-mix needed more resources on design team
  • Skilled CAD engineers to deliver 3D models and 2D drawing files for various fabrication operations with DFMA inputs
  • Need for additional resources to accommodate fluctuating market demands


  • Initial inputs received were only PDF files that resulted in iterative work for accuracy in design detailing
  • Heavy and multi-component assemblies needed multiple resources to work upon
  • Engineers needed to have an eye for manufacturing detail to maintain accuracy

Our Solutions & Approach

Stay quick by reusing models from CAD library

Share Your Thoughts

Once the team received input PDF drawings, it defined the scope of work and initiated developing manufacturing drawings.

  • Initial calls were set up to clear off queries related to tooling capabilities and other RFIs in input drawings
  • Sometimes the team would also receive SolidWorks and other CAD models to correct the design details like dimensions and other features
  • Both, corrections and new drawing development were done after primary training by the design head at the client’s end to get acquainted with their drawing styles
  • Based on our previous experience with DFMA guidelines we began with sheet metal modeling in SolidWorks
  • Part drawings, assemblies, manufacturing drawings, BOMs were also created alongside
  • Team developed 3D parametric models with a top-down approach for repetitive products. This enabled the interlinking of parts and assembles to auto-update properties and design parameters
  • All work was allocated to assigned team members on a priority basis to ensure meeting delivery timelines
  • A work log was maintained to address the concern of remarks while multiple engineers worked on the same work order
  • The team gradually built the library of all product mixes for the client after three man-months, about 70% of the product library is readily available
  • Once the final sheet metal fabrication drawings with parts and assemblies were ready, they were QC-ed against the checklist and shared with the client through secure email
  • Additionally, in case of logo drawing 2D AutoCAD files were also generated and shared with the client

Business Impact

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