How to choose a sheet metal fabrication supplier
Be sure to check for the worst supplier that could cause you problems in terms of time, money and rework.
Verify Material Certifications
Verify Material Certifications – ask for test certificates and verify that the supplier can trace each batch of metal back to the original mill to verify the metal grade and quality.
Check In-House Versus Outsourced Processes
Outsourced processes like cutting, bending, and finishing can add to the lead time of your parts, and furthermore, lower the quality of these parts every time they are handed over to another supplier. It is very important to ask for the supplier’s internal processes, and treat outsourced processes with suspicion.
Understand Lead Times and Minimum Orders
Find out the supplier’s lead time and minimum order quantity for a first order as well as for subsequent repeat orders. Most suppliers will have a number of processes that can be ordered in large volumes but others may be better for ordering in small numbers.
Ask About Quality Control Checks
First article inspection and CMM dimensional checking are typical quality control processes that are carried out by sheet metal fabrication suppliers. Establishing whether these are carried out as standard or if they are optional would be sensible. For manufacturing industry standards in the UK, suppliers of sheet metal fabrication parts to regulated industries would typically expect these processes to be carried out in line with these.
Assess Communication and After-Sales Support
Identify who would handle queries after an order has been placed and assess their ability to assist with any subsequent modifications to parts ordered through them. For Sheet Metal Fabrication, see dkmsheetmetal.co.uk/.
A supplier that clearly answers all of these questions will likely be a good supplier to use for your work.
