Glossary

Fourslide stamping, also called four-slide stamping or multi-slide stamping, is a metal forming process that uses multiple moving tool slides to cut, bend, pierce, notch, coin, and form small metal parts from strip stock or wire. Unlike a traditional stamping press, which usually drives tooling mostly up and down in a vertical motion, a fourslide machine uses slides that move horizontally toward the workpiece from several directions, commonly from the front, back, left, and right. This allows the machine to form complex bends, offsets, hooks, tabs, loops, and spring features in one continuous operation.

The process usually starts with a coil of flat metal strip or wire. The material is fed into the machine, where it may be pierced, blanked, notched, embossed, or partially cut. Then the slides move in sequence to bend or shape the part from different angles. After the forming steps are complete, the finished component is cut off from the strip or wire. Because several forming actions can happen in a compact machine cycle, fourslide stamping is especially useful for parts that would otherwise require multiple press operations, secondary forming steps, or complicated progressive dies.

In fastener, hardware, and industrial component manufacturing, fourslide stamping is often used to produce small precision parts such as spring clips, retaining clips, electrical contacts, terminals, brackets, latches, wire forms, clamps, hooks, shields, specialty washers, and custom fastening components. It is especially valuable for parts with multiple bends or features that wrap around, snap into place, apply spring pressure, retain another part, or act as a small mechanical connector.

A major advantage of fourslide stamping is its ability to make complex parts efficiently from coil-fed material with relatively low scrap. Because the tooling can approach the part from multiple directions, the process can form shapes that may be awkward or expensive to make with a conventional straight-down stamping press. For high-volume production, it can be very cost-effective, especially for small metal parts that require repeatability, tight dimensional control, and fast cycle times.

Materials commonly used in fourslide stamping include carbon steel, stainless steel, spring steel, brass, phosphor bronze, beryllium copper, aluminum, and other formable metal alloys. Material selection depends on the required strength, spring properties, corrosion resistance, conductivity, hardness, and finish. After forming, parts may be heat treated, plated, passivated, deburred, cleaned, or coated depending on the application.

Fourslide stamping is best understood as a hybrid between stamping and precision forming. It does not simply punch a flat shape out of metal; it can create a finished three-dimensional component with bends and functional features built into the part. In fastener-related applications, it is commonly used when the part needs to grip, retain, spring, latch, ground, shield, or hold another component in position.

AKA: Four-Slide Stamping or Multi-Slide Stamping

Stamping is a manufacturing process that uses a press and specially shaped tooling to cut, bend, form, pierce, draw, emboss, or shape sheet metal into a desired part. Instead of removing material slowly like machining, stamping uses force to rapidly deform or separate metal, usually from flat sheet, strip, or coil stock.

The basic setup includes a stamping press, a die, and a punch. The die contains the cavity, cutting edge, or forming geometry, while the punch pushes the metal into or against the die. When the press cycles, the tooling applies high force to the metal, causing it to shear, bend, stretch, compress, or flow into the required shape. Depending on the part, this can happen in one hit or through several progressive steps.

Metal stamping can include several operations. Blanking cuts the outside profile of a part from sheet metal. Piercing punches holes or slots into the part. Bending forms angles, flanges, tabs, or brackets. Coining compresses details into the surface with high pressure. Embossing raises or recesses features. Deep drawing pulls sheet metal into a hollow shape, such as a cup, shell, or housing. Many stamped parts use multiple operations in sequence.

One common production method is progressive die stamping. In this process, a coil of metal feeds through a die in steps. Each station performs a different operation, and the part gradually takes shape as it moves through the tool. At the final station, the finished part is cut free. Progressive stamping is efficient for high-volume production because it can produce complex parts quickly and repeatedly.

Metal stamping is widely used for brackets, clips, clamps, washers, shims, terminals, contacts, covers, retainers, panels, enclosures, hinges, automotive parts, appliance parts, electronics components, and industrial hardware. In the fastener world, stamping is especially important for parts like flat washers, lock washers, spring clips, retaining clips, cage components, stamped nuts, speed nuts, brackets, and other formed metal hardware.

The material used for stamping must have the right balance of strength and formability. Common stamping materials include low-carbon steel, stainless steel, spring steel, aluminum, brass, copper, bronze, phosphor bronze, beryllium copper, and nickel alloys. Softer materials are easier to form, while harder or spring-temper materials may provide better strength and elastic recovery but require more careful tooling design.

A key advantage of metal stamping is that it can produce large quantities of consistent parts at low per-piece cost once the tooling is built. The tradeoff is that the dies can be expensive to design and manufacture, so stamping is usually most economical when the production volume justifies the tooling investment. For lower quantities, laser cutting, waterjet cutting, machining, wire forming, or press brake forming may be more practical.