Springs
Etched flat springs offer high design freedom, precise spring performance, and clean contours—even with very thin or hard materials.
Etched high-precision flat springs
Thanks to the high degree of design freedom, the spring characteristics can be precisely defined and implemented. The part design is created in three dimensions. This allows additional product features to be integrated alongside the spring function, such as partial etching, specific openings, positioning aids, etc.
With our manufacturing technology, extremely hard and thin materials can be processed. Especially when conventional stamping can no longer be used, you benefit from enormous freedom in implementing your drawing and selecting materials.
We supply the products according to your requirements, ready to use—wound on reel-to-reel strip, in sheets, or as individual parts—and absolutely free of dust, oil, and dirt.
Your benefits
at a glance
- Burr- and stress-free parts
- Multiple product features in one part at no additional cost
- Also suitable for titanium applications
- Cost-effective tool manufacturing / design iterations
- Implementation of complex designs (channel structures)
Photochemical etching process for precision metal parts
Photochemical etching produces highly precise metal components with the finest structures and complex geometries. The technology works with extremely tight tolerances, very thin metal sheets, and burr-free results. This enables components that are often not possible with other processes. The finest structures are etched directly from thin sheet metal. The process is characterised by excellent repeatability, high precision, and industrial scalability.
In photochemical etching, metal is structured using a precise lithography and etching process.
The finest contours are created directly from thin sheet metal. The process enables complex geometries without mechanically stressing the material.
The result is stress-free, burr-free components with very high dimensional accuracy.
Our etching process offers virtually unlimited design freedom.
Photo-etching can be used to create a wide range of structures – for example:
• Filtered structures
• See-through structures
• Sharp and smooth edges
• Channelled geometries
With specially developed mask technology, the etching progress can also be controlled in the third dimension.
This creates defined breakthrough geometries and complex components – for example, for lancets, scalpels, or blades in high-volume production.
Photochemical etching enables maximum precision while maintaining high production capacity.
Typical features of the technology:
• Extremely tight tolerances in the hundredths of a millimetre range
• Finest structures and thinnest metals
• High repeatability of results
• Industrial high-volume production possible
The combination of precise lithography and industrial production technology ensures stable processes and cost-effective manufacturing.
In reel-to-reel etching, metal parts are manufactured continuously in an endless strip.
The components are then available as metal strips wound onto reels and can be further processed automatically.
Typical characteristics:
• Metal strip thicknesses of approx. 25 µm to 400 µm
• Easy integration into automated manufacturing processes
• Defined markings or codings possible
The components can be singulated at the customer’s site or fed directly into the next process step.
Photochemical etching can be used to process various metals and alloys.
Standard materials:
• Stainless steel
• Copper
• Nickel
• And its alloys
Additional materials (depending on location):
• Aluminium
• Titanium
• Molybdenum
• Precious metals such as gold or silver
Typical process parameters:
• Material thickness: approx. 0.003 mm to 1.5 mm
• Minimum tolerances: down to ± 0.007 mm
• Minimum web width: approx. 0.5 × material thickness
These values are guidelines and may vary depending on the application.
Our standards are industry-leading
We operate in the world of tightest tolerances, hundredths of a millimeter, finest structures, thinnest metals, and most complex geometries. We etch custom metal components in industrial large series while adhering to the tightest tolerances.
We strive for the highest customer satisfaction through excellent quality. To ensure this, our processes are continuously monitored and further developed through strict quality controls.
Together
to the right solution
The metal specialists of the Wickeder Group combine their strengths to offer you the best in metal. A wide range of standard and customized solutions is available on three continents: Europe, America, and Asia. Through the product and service-oriented business model, the highest quality standards, necessary flexibility, and fast response times are consistently maintained.
Micro Component
Here you will find an overview of additional product solutions relating to etching, laser cutting, or electroforming:
Your contact with us
Do you need further information on the production of flat springs, or do you have a specific task? We look forward to receiving your enquiry.