Chemical Etching vs Laser Cutting, Stamping, CNC and Other Manufacturing Methods
Chemical etching is often the best option for thin, flat metal parts with complex features, tight spacing and burr-free edges. It uses chemical action instead of cutting tools, hard dies or concentrated heat. This helps reduce mechanical stress, heat-affected zones and tooling costs. However, chemical etching is not the best process for every metal component. […]
What Are the Limitations of Photochemical Etching?
Photochemical etching is a precision manufacturing process that uses a photoresist stencil and controlled chemical dissolution to produce detailed components from metal sheet and foil. It is also called photo etching, photochemical machining, or PCM. The process uses photoresist, ultraviolet light, artwork, and controlled chemical removal to create holes, slots, profiles, channels, and repeated patterns. […]
What Is Chemical Etching? Process, Types, Benefits and Uses
Chemical etching is a subtractive manufacturing process that removes selected metal through a controlled chemical reaction. A protective pattern covers the areas that must remain. A chemical solution called an etchant then reacts with the exposed metal and removes it. In precision sheet-metal manufacturing, chemical etching often uses photoresist, ultraviolet light, and digital artwork to […]
Photochemical Etching Materials: Types, Properties and Uses
Photochemical etching materials are metals and alloys that can be shaped with photoresist, ultraviolet light, and controlled chemical etching. The process is mainly used with metal sheet, strip, and foil. Understanding the photochemical etching process helps engineers select suitable materials and designs. Common materials include stainless steel, copper, brass, phosphor bronze, beryllium copper, aluminum, titanium, […]
Photochemical Etching: Process, Materials, Tolerances & Design Guide
Photochemical etching is a precision metal manufacturing process. It uses photoresist, ultraviolet light, and controlled chemical etching to remove selected areas from a metal sheet. The process is also called photo etching, photochemical machining, or PCM. Engineers often use photochemical etching for thin, detailed parts that need clean edges and repeatable features. Typical parts include […]
Membrane Electrode Assembly (MEA) in Fuel Cells: How It Works
A membrane electrode assembly, or MEA, is the electrochemical core of a proton exchange membrane fuel cell. It combines a proton-conducting membrane, catalyst layers, and gas diffusion layers into a structure where hydrogen and oxygen react to produce electricity, water, and heat. The MEA does not operate alone. It is compressed between bipolar plates that […]
Stainless Steel Etching: Costs, Uses, and Expert Tips
Stainless steel etching is used to produce thin metal parts with detailed openings, slots, channels, and complex profiles. It is often selected for components that may be difficult to manufacture with mechanical cutting or hard tooling. However, the cost and quality of etched stainless steel parts depend on more than the basic process. Material grade, […]
Proton Exchange Membrane Fuel Cell Structure & Key Components
What Is a Proton Exchange Membrane Fuel Cell? Proton exchange membrane fuel cells, also known as polymer electrolyte fuel cells, are low-temperature fuel cells that typically operate below 100°C. To compare PEMFCs with AFC, MCFC, SOFC, and DMFC systems, see this fuel cell classification guide. This makes them suitable for a wide range of PEM […]
Understanding the Importance of Board-Level EMI Protection
The increased use of modern electronic devices at higher speeds and closer spacing now renders EMI a significant design problem. From the vicinity where interference is most likely to take place, right on the PCB board-level, EMI shielding is a must. Custom board-level EMI shielding attenuates unwanted noise at the point of origin, resulting in […]