Finishing Alternatives for Metal Stamping

Finishing Alternatives for Metal Stamping

Heat treatment enables metal stampers to use softer steel alloys to produce a more intricate item while maintaining the metal strength required for certain applications.

FREMONT, CA: While developing and producing precise metal stamped components, project managers and engineers representing the manufacturer, its suppliers, and the metal stamper should consider the options for finishing the part to ensure optimal performance. Metal finishing is a vital phase in the manufacturing process that should be considered from the outset, whether one needs to prevent corrosion, improve aesthetics, or smooth rough edges.

There are a variety of alternatives for finishing, including:

E-Coating and Powder Coating

Paint, powder, and metal coatings are among the most frequent coatings applied to a part's surface. Electro-coating, often known as e-coating, is frequently used as a primer to guard against corrosion, while powder coating is added for aesthetic reasons. Both forms of coating are required in some applications, particularly in the automotive industry.

Electropolishing

The outer layer of metal and contaminants is removed by immersing the parts in a tank filled with a blended chemical electrolyte solution and then subjecting them to an electrical current. Rack electropolishing makes contact with each item and is utilized for complex metal stampings with tight tolerances. Bulk electropolishing is used for small items that do not require the same consistency in material removals, such as fasteners and springs.

Deburring

A burr is a sharp edge or small bits of metal that remain on a workpiece after stamping. The process of eliminating superfluous material is known as deburring. Deburring, despite being a very simple secondary process, is frequently a vital technique for fit.

Heat Treatment

Heat treating metals entails heating and cooling them, changing their microstructure, and bringing out the physical and mechanical properties that make them more desirable. Heat treatment enables metal stampers to use softer steel alloys to produce a more intricate item while maintaining the metal strength required for certain applications. The temperature at which the metal is heated and the rate at which it cools following the heat treatment have an effect on the qualities of the metal stamping. Metals are heat treated for various reasons, the most frequent of which are to increase part strength, hardness, toughness, and corrosion resistance.

Cleaning

The metal stamping process produces residues on stamped parts, such as lubricants, metal shavings, and dust, impacting the part's functionality. To remove pollutants and improve the appearance of the part, a variety of cleaning methods are available.

Metal stampers normally provide a variety of cleaning services in-house, but for highly specialized cleaning services, they may turn to other licensed vendors. More than one cleaning operation can be required to achieve optimal function, both after stamping and again after metal finishing.

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