What is Metal Stamping?

Punching, Forming, Drawing

Donlouco Ireland Ltd has a proven track record for quality and sustainable supply of precision stamped parts.

Supplying many different types of parts and components that are punched, formed, deep drawn etc. to automotive and electromechanical industries.

Metal stamping is a versatile and efficient manufacturing process that involves various techniques, such as punching, forming, and drawing, to transform flat sheet metal into desired shapes.

Punching involves using a specialised tool called a punch to create holes or cutouts in the metal sheet.

Forming, on the other hand, bends the metal into different shapes using dies and presses.

Drawing is a technique that stretches the metal sheet over a die to produce three-dimensional shapes like enclosures.

These processes enable the mass production of high-quality and intricate metal components efficiently and reliably.

Donlouco is a company that has expertise in multiple areas of manufacturing, including but not limited to metal stamping, forging, and CNC machining.

We offer a diverse range of metal stamping activities, including:

Progressive Die Stamping: Progressive die stamping is a metal-forming process that can produce complex parts in multiple stages.

Metal coils are fed through the various stations of an auto-transfer production line, each time a new feature is completed. A High-Tonnage Press Machine uses extreme pressure to dictate the shape of a part.

Deep Draw Stamping: Deep drawn stamping is a manufacturing method of forming sheet metal called blanks into parts of complex shapes and features with deep cavities.

Typically, single blanks are used in order to manufacture parts with thick bases and drawn sides. At each step in the deep drawing process, the metal blank is shaped through the extreme pressure applied by a metal die.

Blanking: The blanking process removes pieces of material from the sheet to create the workpiece. Fine blanking, a variation of blanking, makes high-accuracy parts with edge definition and greater surface smoothness.

Punching: Punching is the opposite process of blanking. Material is removed from the workpiece instead of removing the material to create a workpiece.

Coining: A type of blanking that creates small round-shaped workpieces. Since it involves large amounts of force to form a small piece, it hardens the metal and removes burrs and rough edges.

Bending: This process is often used to create profiles in U, V, or L shapes. Flanging is a type of bending specifically for sections of a workpiece instead of the whole part. 

Donlouco manufactures parts from a range of raw materials, including steel, stainless steel, aluminium, galvanised steel, brass, bronze, zinc and other requested materials.

Parts can be zinc plated to EN ISO 2081, ASTM B633 Standards, and other standards specific to customer requirements. Donlouco also only used approved suppliers for raw materials to ensure final part quality for customers.

Learn more about our materials.

Donlouco implements various quality control measures to ensure the consistent quality production of parts. Donlouco assures quality control through routine checks throughout the manufacturing process.

Donlouco delivers all shipments of parts with full traceability and quality control reports.

• Full traceability & QC documentation with every batch of parts delivered.

• Sample testing & results with each batch of parts.

• Raw material certification 3.1 etc with each batch.

Parts can be tensile tested, impact tested, at the approval stage and by sampling as required. Dimensional check reports and CMM reports are also provided where applicable.

Donlouco is EN 1090 and ISO 9001 approved for the CE Stamping of parts. ISO 9001 is an internationally recognised standard for Quality Assurance.

Donloucos has the capability to provide finished parts with a number of different plating options to meet any of the internationally recognised plating standards. Some common secondary processes include:

• Pre-plating and post-plating.

• Precious and non-precious metal and spot plating.

• Heat treating.

• Painting.

• Deburring.

• Secondary tooling to trim.

• Passivation.

• Electropolishing.

• Sterilisation.

• Forming and laser welding.

Donlouco serves tier manufacturers and OEMs. Donlouco works directly with companies operating in the automotive industry, electromechanical industry, and any other industry that requires stamped parts.

Donlouco serves the automotive, appliance, electrical, electronics, mechanical, lighting, structural building components, and all other industries with a need for high-volume, precision stamped parts.

Learn more about the Industries We Serve.

Donlouco produces a wide range of customer-specific parts including deep-drawn housings, rolled housings, stamped washers, interlocking parts, connector pins, precision spacers, clips, etc.

Donlouco can reverse engineer parts, make 3D models, and determine the best manufacturing method for a specific component.

Generally, Donlouco only deals with high-volume production runs; however, this also depends on the specific part. Contact our manufacturing and engineering team today to find the right solutions for your company.

Donlouco is experienced in designing and building progressive die tools for production. Custom tooling is carried out for customer-specific parts and is suitable for high-volume production runs.

Donlouco can manufacture parts using metal stamping methods of punching, forming, and drawing of various shapes and thicknesses.

Donlouco has an easy 10-step plan for all customers. Our seamless supply chain of parts includes the following: initial enquiry, process enquiry, quotations, commercial review, purchase order, engineering/tooling, production, packing, shipping, and follow-on orders.

Learn more about the 10-Step Customer Journey with Donlouco.