Benefits of Metal Sheet Fabrication
Metal sheet fabrication delivers exceptional cost-effectiveness with minimal tooling investment, making it ideal for both prototypes and high-volume production. Parts boast an outstanding strength-to-weight ratio through engineered bends and stiffening ribs that maximize rigidity while minimizing weight. Design flexibility allows quick adjustments to holes, flanges, and bend angles without expensive retooling. The process supports a wide range of materials from carbon steel and stainless steel to aluminum, copper, and specialty alloys. Each offering unique properties like corrosion resistance and thermal stability. Highly scalable and durable, sheet metal fabrication parts withstand harsh environments, ensuring long-lasting performance across aerospace, automotive, electronics, and medical industries.
Metal Sheet Fabrication Standrad Tolerances
Metal sheet fabrication follows ISO 2768‑m standard. Bending tolerance and dimensional accuracy vary by part size and bend counts. Tolerance stacking occurs on multi‑bend sheet metal parts. Tighter values are available for critical functional features upon request.
Feature |
Standard Tolerance |
Precision Tolerance |
|---|---|---|
|
Laser Cutting (linear) |
±0.10 mm (±0.004") |
±0.05 mm (±0.002") |
|
CNC Bending (angular) |
±1° |
±0.5° |
|
Formed Dimensions |
±0.25 mm (±0.010") |
±0.10 mm (±0.004") |
|
Punching / Hole Diameter |
±0.05 mm (±0.002") |
±0.02 mm (±0.001") |
|
Hardware Insertion |
+0.003" / -0.000" |
— |
|
Welded Assemblies |
±0.50 mm (±0.020") |
±0.25 mm (±0.010") |
|
Flatness (after forming) |
±0.30 mm per 100 mm |
±0.15 mm per 100 mm |
|
Surface Roughness (blank) |
Ra 125 µin (3.2 µm) max |
— |
Metal Sheet Fabrication Service Capabilities
MXY Machining comprehensive metal sheet fabrication capabilities cover the entire production lifecycle from initial design consultation and prototyping to full-scale manufacturing and finishing all under one roof.
Lead Time for Metal Sheet Fabrication Service
Lead time for metal sheet fabrication depends on design complexity and batch production volume. Standard custom sheet metal orders take 3‑7 business days. Rush order is offered for urgent projects if raw materials are in stock.
Production Type |
Standard Lead Time |
Rush / Expedited |
|---|---|---|
|
Prototypes |
3 – 5 business days |
24 – 48 hours |
|
Low Volume |
5 – 7 business days |
3 – 4 business days |
|
Medium Volume |
7 – 14 business days |
5 – 7 business days |
|
High Volume |
2 – 4 weeks |
1 – 2 weeks |
|
Welded Assemblies |
7 – 10 business days |
4 – 5 business days |
|
Parts with Surface Finishing |
Add 2 – 3 business days |
Add 1 – 2 business days |
Metal Sheet Fabrication Materials
Common metal sheet fabrication materials include stainless steel, aluminum, carbon steel and copper. Each features distinct strength, corrosion resistance and forming performance. Material selection depends on application requirements, budget and subsequent surface treatment needs.
Visit our materials page for a full list.
Metal Sheet Fabrication Surface Finishes
Metal sheet fabrication surface finishes cover powder coating, anodizing and brushed finish. These treatments boost corrosion resistance and visual appearance. Deburring is essential prior to finishing for high‑quality sheet metal components.
As-Fabricated (Raw / Mill Finish)
Passivation process
Default finish straight from sheet metal fabrication cutting, bending, and welding with no secondary treatment. Visible shear cut edges, bend lines, weld seams, and native mill finish. Suitable for structural brackets, internal frames, and functional components where cosmetic appearance is secondary to strength and cost.
Brushed / Grain Finish
Passivation process
Mechanical brushing with abrasive belts creates a uniform directional linear grain pattern across sheet metal. Hides scratches and surface imperfections, produces a consistent semi-matte appearance. The most popular decorative finish for stainless steel and aluminum — used for kitchen equipment, architectural panels, appliance housings, and consumer product enclosures.
Polished / Mirror Finish
Passivation process
Mechanical polishing with progressively finer compounds and buffing wheels produces a highly reflective, mirror-like surface. Removes all scratches, tool marks, and imperfections achieving the highest possible gloss. Used for stainless steel food service equipment, medical instruments, architectural trim, decorative panels, and premium consumer products requiring a flawless reflective finish.
Bead Blasted / Satin
Passivation process
High-pressure blasting with glass beads or aluminum oxide creates a uniform matte satin, non-reflective surface. Hides weld seams, scratches, and surface inconsistencies, produces a consistent fine grain texture. Used for aluminum and stainless steel brackets, enclosures, medical devices, and industrial components where a clean, uniform, non-glare matte appearance is desired.
Powder Coated
Passivation process
Electrostatic dry powder paint followed by thermal curing creates a durable, uniform matte or satin finish. Available in any RAL color, provides excellent corrosion and scratch resistance, thicker and more durable than wet paint. The most popular protective/decorative finish for steel and aluminum enclosures, electrical boxes, machine housings, and outdoor industrial equipment.
Anodized (Aluminum)
Passivation process
Electrochemical process creates a hard, corrosion-resistant, dyeable aluminum oxide layer on aluminum sheet metal. Available in any color (black, blue, red, clear), provides wear protection and improved corrosion resistance. Widely used for aluminum enclosures, electronic housings, aerospace components, and architectural panels requiring a durable, colored, corrosion-resistant finish.
Galvanized (Steel)
Passivation process
Hot-dip galvanizing immerses steel in molten zinc, creating a thick, corrosion-resistant zinc-iron alloy coating with a characteristic spangled crystalline pattern. Provides excellent long-term corrosion protection for outdoor and structural applications. Used for steel brackets, structural frames, outdoor equipment, fencing, and any steel component requiring durable rust protection in harsh environments.
Painted / Wet Paint
Passivation process
Conventional spray painting with liquid paint (acrylic, epoxy, polyurethane) applied over a primed surface, available in any custom color and gloss level. Provides good corrosion protection and decorative color ideal for parts requiring custom color matching, intricate masking, or multi-color finishes where powder coating is not practical. Used for industrial equipment, automotive parts, and custom enclosures.
Black Oxide (Steel)
Passivation process
Chemical conversion coating creates a uniform matte black finish on steel sheet metal. Minimizes light reflection, provides mild corrosion protection, and does not affect dimensional accuracy. Used for steel tooling, fixtures, optical components, and hardware where a non-reflective black surface is desired often combined with oil or wax topcoat for enhanced corrosion protection.
Passivated (Stainless Steel)
Passivation process
Chemical treatment (citric or nitric acid) removes free iron and contaminants from stainless steel surfaces, restoring and enhancing the protective chromium oxide layer for improved corrosion resistance. Does not change appearance, dimensions, or surface texture. Standard post-fabrication treatment for all 304/316 stainless steel parts — especially medical instruments, food service equipment, pharmaceutical components, and outdoor stainless applications.
