If you have searched for “metal pressing” or “metal stamping” while sourcing parts or researching manufacturing processes, you may wonder whether these terms refer to the same thing or describe different operations. The short answer: metal pressing and metal stamping are essentially the same process. The terms are used interchangeably in the metalworking industry, though regional and contextual preferences exist.
This article clarifies the terminology, explains the core process both terms describe, and covers the specific operations that fall under the metal pressing / metal stamping umbrella.
Metal Pressing and Metal Stamping: Same Process, Different Names
Metal pressing (also called press working) and metal stamping both refer to the process of forming flat sheet metal into shaped parts using a press machine and die tooling. A machine applies force to push sheet metal into or around a die, changing its shape through cutting, bending, or forming operations.
Why two names exist:
- Metal stamping is the more common term in North America, particularly in the automotive and electronics industries
- Metal pressing is widely used in the UK, Europe, and parts of Asia
- Press work or press forming are generic engineering terms used in technical literature
- Sheet metal stamping specifically emphasizes that the raw material is flat sheet or coil
Regardless of terminology, the underlying process is identical: a press machine (mechanical, hydraulic, or servo) drives a die tool into sheet metal to produce a shaped part. All of the following are metal pressing / metal stamping operations:
Operations Within Metal Pressing / Stamping
Cutting Operations
Cutting operations separate material by shearing it between a punch and die:
- Blanking – cutting a complete flat shape out of sheet metal. The cut-out piece is the product (the blank). Used to produce washers, gaskets, mounting plates, and blanks for further forming.
- Piercing – punching holes or openings into a part. The removed material (slug) is scrap. Used for bolt holes, ventilation slots, wire pass-throughs.
- Notching – cutting material from the edge of a strip or blank. Used in progressive dies to create part outlines and in sheet metal to allow bending without interference.
- Trimming – removing excess material from a previously formed part. Used after deep drawing or forming to achieve final part dimensions.
- Shearing – straight-line cutting across a sheet or strip. Used to cut sheets to size before stamping.
- Lancing – cutting a line without completely separating material, creating a tab, louver, or bridge. The cut material remains attached on one or more sides.
Forming Operations
Forming operations change the shape of sheet metal without removing material:
- Bending – folding metal along a straight line to create an angle. V-bends, U-bends, and Z-bends are standard configurations. Used for brackets, channels, and enclosure panels.
- Deep drawing – forming a flat blank into a cup, box, or shell shape where depth exceeds diameter. Used for cans, housings, enclosures, and cylindrical parts. Learn more: Deep Draw Stamping
- Stretching – pulling material over a form to create a smooth contoured surface. Used for automotive body panels and aerodynamic covers.
- Flanging – bending a short lip or edge at an angle to the main surface. Used to stiffen panels, create assembly interfaces, or prepare edges for hemming.
- Embossing – creating raised or recessed features (ribs, lettering, logos) by stretching the material locally. Used for branding, stiffening, and decorative effects.
- Coining – compressing material under high pressure to create precise thickness, surface detail, or hardened areas. Used for electrical contacts, bearing surfaces, and precision shims.
- Ironing – thinning the walls of a drawn cup to achieve uniform wall thickness. Used for beverage cans and cylindrical shells.
- Curling – rolling a sheet edge into a tube or ring shape. Used for hinges, wire guides, and safe edge treatments.
The Metal Pressing / Stamping Process Flow
A typical metal stamping production flow follows these steps:
- Material preparation – coil stock is loaded onto a decoiler and fed through a straightener to remove coil set
- Feeding – a servo or roll feeder advances the strip into the die at a precise pitch per press stroke
- Pressing/Stamping – the press cycles and the die performs cutting and/or forming operations on the metal
- Part ejection – finished parts exit the die by gravity, air blast, or mechanical extraction
- Inspection – parts are checked against specifications (dimensions, surface quality, burr height)
- Secondary operations – deburring, plating, heat treatment, assembly as required
For high-volume production, steps 1-4 run continuously at speeds from 30 to 1,500+ strokes per minute in a progressive die stamping setup.
Types of Presses Used in Metal Pressing
The press machine is the heart of any metal pressing operation. Three main types are used:
| Press Type | Force Delivery | Speed | Best Application |
|---|---|---|---|
| Mechanical press | Flywheel + crankshaft, peak force at BDC | 20-1,500+ SPM | High-speed blanking, piercing, progressive dies |
| Hydraulic press | Hydraulic cylinder, full force throughout stroke | 5-50 SPM | Deep drawing, heavy forming, thick material |
| Servo press | Servo motor direct drive, programmable motion | 10-300+ SPM | Complex forming, variable speed needs, AHSS |
Read our complete guide: Metal Stamping Machines: Types, Tonnage & Selection
Metal Pressing vs. Other Manufacturing Processes
While metal pressing/stamping and some other processes both create metal parts, they differ fundamentally:
| Process | How It Works | Best For |
|---|---|---|
| Metal Pressing/Stamping | Shapes flat sheet metal using dies and press force | High-volume parts from sheet metal |
| CNC Machining | Removes material from solid block using cutting tools | Low-volume, complex 3D parts from solid stock |
| Metal Casting | Pours molten metal into a mold cavity | Complex 3D shapes, large parts, medium volumes |
| Metal Forging | Compresses heated metal between dies | High-strength structural parts (bolts, connecting rods) |
| Sheet Metal Fabrication | Cuts, bends, and welds sheet metal using CNC brake, laser, welding | Low-volume, large parts, enclosures |
Metal pressing/stamping wins on per-part cost and speed for volumes above a few thousand pieces. When volumes are low or parts cannot be made from sheet stock, machining or fabrication may be more appropriate.
Industries That Use Metal Pressing
Virtually every manufacturing sector uses metal pressed components:
- Automotive – body panels, brackets, terminals, clips, seat frames
- Electronics – connector contacts, shielding cans, heat sinks, lead frames
- Aerospace – structural brackets, fastener hardware, panel clips
- Construction – steel framing connectors, HVAC brackets, hardware
- Appliance – motor laminations, panels, internal brackets and supports
- Medical – surgical instrument parts, implant components, device housings
Get a Quote for Metal Pressing / Stamping Parts
Whether you call it metal pressing, metal stamping, or press work, we manufacture precision stamped parts from all common engineering metals. Send us your part drawing for a competitive quotation including tooling and piece prices.
Email: duoshaomali@gmail.com | Phone/WhatsApp: +86 152-5047-1868
Get a quote for custom metal stamping services. We produce metal stamping parts for automotive, aerospace, electronics, and more.
Frequently Asked Questions
What is metal pressing?
Metal pressing is a specialized manufacturing process used to create precise metal components. Our team has over 25 years of experience delivering high-quality results for global clients across automotive, aerospace, electronics, and construction industries.
What tolerances can you achieve for metal pressing?
We achieve standard tolerances of ±0.05mm, with precision tolerances down to ±0.02mm for critical applications. All parts are inspected using CMM equipment with Cpk≥1.33 process capability.
What materials do you work with for metal pressing?
We work with a wide range of materials including aluminum (1100-6061), stainless steel (301-430), carbon steel, copper, brass, phosphor bronze, and specialty alloys. Material thickness ranges from 0.1mm to 12mm.
What is your minimum order quantity for metal pressing?
We accept prototype orders starting from 1 piece. For production runs, we recommend starting at 1,000 pieces for cost efficiency, though we accommodate various volumes based on project requirements.
How do I get a quote for metal pressing?
Submit your drawings (DWG, DXF, STEP, IGES, or PDF) via our contact form or email. We provide DFM feedback and pricing within 24 hours. Our engineering team reviews every inquiry for optimal manufacturability.
What quality certifications do you have for metal pressing?
We maintain ISO 9001:2015 and IATF 16949 certifications with full traceability. Every shipment includes inspection reports, material certificates, and compliance documentation as required.
