Cutting
Laser, plasma, waterjet, saw, shear, and punching capabilities.
Metal Fabrication Buying Guide
Choose a fabricator that can control the complete assembly.
Compare cutting, forming, welding, machining, finishing, inspection, assembly, capacity, and project management across potential metal fabrication suppliers.
Buying Overview
Start with the full manufacturing requirement.
Metal fabrication often combines several operations, including laser cutting, punching, bending, rolling, welding, machining, grinding, finishing, and assembly. Supplier capability should be evaluated across the entire routing, not just the first production step.
Supplier Comparison
Capabilities that should be reviewed before awarding work.
Use these categories to compare suppliers on equivalent technical, quality, operational, and support requirements.
Forming
Press brakes, rolling, deep forming, tooling, bend control, and repeatability.
Welding
MIG, TIG, resistance, robotic, fixture-based, and code-related welding.
Machining
Drilling, tapping, milling, turning, and precision finishing after fabrication.
Assembly
Fastening, hardware insertion, subassemblies, final assembly, and functional testing.
Finishing
Grinding, polishing, blasting, plating, anodizing, painting, and powder coating.
Inspection
Weld inspection, fixture checks, dimensional verification, CMM use, and documentation.
Program Control
Material purchasing, scheduling, subcontractor management, revisions, and delivery.
RFQ Preparation
Give suppliers enough information to quote accurately.
Complete Drawings
Provide part and assembly drawings, weld symbols, tolerances, revisions, and bills of material.
Material Details
Specify grade, thickness, finish, certifications, grain direction, and substitution limits.
Welding Requirements
Identify weld process, size, appearance, code, qualification, inspection, and distortion limits.
Finish Requirements
Define preparation, masking, color, coating thickness, appearance, and corrosion performance.
Assembly Scope
Clarify purchased hardware, customer-supplied components, testing, labeling, and packaging.
Delivery Plan
Include batch sizes, release schedule, shipping method, protective packaging, and destination.
Selection Workflow
A practical path from research to production approval.
Map the full routing
Identify every operation from raw material through cutting, forming, welding, finishing, assembly, and shipment.
Review in-house versus outsourced work
Understand which steps are controlled internally and which depend on approved outside processors.
Evaluate fixtures and process control
Confirm how the supplier controls distortion, repeatability, weld location, and assembly dimensions.
Inspect first production output
Use samples, first articles, weld reviews, finish approval, and dimensional verification.
Track supplier execution
Monitor quality, delivery, communication, subcontractor performance, and engineering changes.
Continue through the Manufacturing Yield buying-guide library.
Compare this process with other production methods, review the supplier-selection framework, and use the RFQ guide before requesting pricing.
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