The Core Processes of Custom Sheet Metal Fabrication

Custom sheet metal fabrication involves several key steps that transform raw metal sheets into precise, functional parts. Understanding these core processes helps ensure quality and efficiency in your project.

Cutting Technologies: Laser Cutting, Punching & Shearing

The first stage usually involves cutting the metal to the right shape and size. We use advanced laser cutting services for precision, along with punching och shearing methods for faster material removal. Laser cutting offers tight sheet metal tolerances, while punching is ideal for repetitive holes or shapes. Shearing provides clean, straight cuts for standard sizes.

Metal Forming and Shaping: Bending Press Brake & Metal Stamping

Once cut, metal sheets go through metal forming processes like press brake forming, which bends the material to precise angles without compromising strength. For complex shapes, metal stamping is used, where a die shapes the metal under high pressure, perfect for high-volume runs or detailed features.

Assembly and Joining: Welding, Riveting & Hardware Insertion

The final stage is assembly. This includes TIG welding services known for clean, strong welds ideal for stainless steel and aluminum components. Other joining techniques include riveting and hardware insertion, which provide durable mechanical connections without heat. These ensure your custom metal enclosures or structural parts hold up under stress.

By combining cutting, forming, and assembly with precision CNC machining and expert craftsmanship, custom sheet metal fabrication delivers reliable parts that meet exact specs—whether for rapid prototyping or full-scale production.

Material Selection: Choosing the Right Alloy

Picking the right material is a crucial step in custom sheet metal fabrication. The choice directly affects durability, cost, and performance, so understanding your options is key.

Stainless Steel Grades and Corrosion Resistance

Stainless steel is popular for its strength and resistance to rust and corrosion. Different grades like 304 and 316 offer varying levels of protection, with 316 ideal for harsh environments. This metal is perfect for applications where lasting durability and clean aesthetics matter, like custom metal enclosures.

Aluminum for Weight-to-Strength Ratio

When weight is a concern but strength can’t be compromised, aluminum stands out. It’s lighter than steel and resists corrosion, making it a top choice for aerospace, automotive, and consumer products that demand a good weight-to-strength ratio. Plus, aluminum fabrication pairs well with precision CNC machining for tight tolerances.

Carbon Steel and Copper for Structural and Conductive Needs

Carbon steel is often used when you need a tough, cost-effective option for structural parts like brackets or chassis. It’s strong, easy to weld, and broadly available in sheet metal gauges. Copper, meanwhile, shines in applications requiring excellent electrical conductivity or thermal management. Custom sheet metal fabrication involving copper is common for electrical components and heat sinks.

Choosing the right alloy upfront ensures your project meets both design and functional goals, preventing costly rework down the line. For detailed metal fabrication that matches your specs, consider our precision CNC milling services and laser cutting capabilities to bring your design to life efficiently and accurately.

Design for Manufacturing (DFM) in Metal Design

Design for Manufacturing (DFM) is a critical step in custom sheet metal fabrication that helps optimize parts for both cost and speed. At MS Machining, we focus on designing parts that are not only functional but also easy to produce using our advanced sheet metal processes. This means considering factors like sheet metal tolerances, bend allowances, and material selection early in the design phase to avoid costly revisions.