4-D Welding has certifications by the American Welding Society (AWS), American Society of Mechanical Engineers (ASME), Military Specifications (MILSPEC) and the State of Wisconsin. Certified welding experts assure your piece-of-mind.

Complex aluminum weldment.

The experienced craftsmen at 4-D Welding are the biggest assets we have. Their commitment, attitude, and extraordinary work skills and ethics have made our growth possible. Our quality assurance program is a direct reflection of our commitment to maintain the highest standards in the market.

Capability for large assemblies.

Each operation of work is inspected and checked against the engineering drawings and contract documents and a thorough visual inspection of 10% of the parts in each order, unless specified otherwise. Because of the passion we devote to our quality program, and family involvement every step of the way, we have an extremely low reject rate. To assure batch-to-batch consistency, we keep detailed quality control documents on every job on file.

Custom machine modifications.