{"id":2234,"date":"2026-07-04T03:47:31","date_gmt":"2026-07-03T19:47:31","guid":{"rendered":"https:\/\/metalstampingparts.ltd\/?page_id=2234"},"modified":"2026-07-04T03:47:31","modified_gmt":"2026-07-03T19:47:31","slug":"metal-stamping-process-sequence-rfq-checklist","status":"publish","type":"page","link":"https:\/\/metalstampingparts.ltd\/metal-stamping-process-sequence-rfq-checklist\/","title":{"rendered":"Metal Stamping Process Sequence RFQ Checklist"},"content":{"rendered":"

Short answer:<\/strong> The process sequence for a stamped part should be defined before quoting. Plating, welding, heat treatment, cleaning, hardware insertion, deburring, inspection, and packaging can change dimensions, appearance, corrosion resistance, and lead time. The RFQ should state the final condition in which the part is accepted.<\/p>\n

Many stamped part disputes are not caused by the stamping operation itself. They happen because the quote did not define whether dimensions are checked before plating or after plating, whether weld nuts are installed before coating, or whether cleaning happens before final packaging. The supplier may quote the correct part in the wrong sequence.<\/p>\n

Use this page with the secondary operations guide<\/a>, plating and passivation RFQ guide<\/a>, welding and assembly guide<\/a>, and heat treatment guide<\/a>.<\/p>\n

Sequence decisions that affect the quote<\/h2>\n\n\n\n\n\n\n\n\n
Operation<\/th>\nSequence risk<\/th>\nRFQ question<\/th>\n<\/tr>\n<\/thead>\n
Plating or coating<\/td>\nThickness buildup or masking can change holes, slots, threads, and contact surfaces.<\/td>\nAre dimensions accepted before or after final finish?<\/td>\n<\/tr>\n
Welding or insertion<\/td>\nHeat, force, or hardware can distort thin stamped parts.<\/td>\nIs hardware installed before coating, after coating, or by the customer?<\/td>\n<\/tr>\n
Heat treatment<\/td>\nHardness changes can improve spring function but may move flatness or dimensions.<\/td>\nIs final inspection after heat treat and stress relief?<\/td>\n<\/tr>\n
Cleaning and packaging<\/td>\nResidue limits and packaging method affect electronics, medical, and cosmetic parts.<\/td>\nWhat is the final cleanliness and packing condition?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Define the accepted final state<\/h2>\n

A drawing may show nominal metal geometry, but the buyer receives a finished part. If plating, powder coating, passivation, heat treatment, welding, or insertion changes the part, the inspection plan should say which dimensions are controlled in the final condition. This is especially important for tapped holes, tabs, grounding surfaces, contact areas, and assembly datums.<\/p>\n

The quote should also say which supplier controls each operation. If a finishing supplier or welding subcontractor is involved, define who owns inspection records, corrective action, and rework decisions. A process map is often clearer than a paragraph in an email.<\/p>\n

Common sequence conflicts<\/h2>\n

Pre-plated material can protect contact surfaces and avoid post-plating distortion, but cut edges may expose base metal. Post-plating can cover edges, but it may alter contact resistance or require masking. Welding before coating can protect corrosion resistance after coating, but heat marks and distortion need review. Hardware insertion after coating may damage finished surfaces.<\/p>\n

For parts with threads, inserts, weld nuts, or clinch fasteners, compare this page with the hardware insertion guide<\/a>, projection weld nut guide<\/a>, and clinching guide<\/a>.<\/p>\n

RFQ details to include<\/h2>\n