The history of etampa ag
Founded in 1945, etampa has developed into a leading and internationally operating company in the stamping and fineblanking sectors. On 7,200 sqm of factory space, etampa operates lean engineering and high-performance toolmaking facilities and an ultra-modern fineblanking and stamping production plant. Employing around 100 people, etampa also maintains a sales office in Illinois, USA and is majority owner of a joint venture with etampa-metra a.s. in Blansko/Czech Republic. At etampa, most of our customers are based in the automotive, electronics/electrical engineering, construction and medical/safety technology industries.

Highest precision in part manufacturing
A defining quality of the Swiss, precision is etampa's guiding light. Our uncompromising attitude not only ensures the quality of our high-precision parts but – equally important – our working processes. Our fineblanking and stamping produces sophisticated parts to our customer's precise requirements – parts that almost always play a mission-critical, safety-relevant role in the final product. This applies not only to vehicle brake/safety systems and electric motor components but also to instruments used in medical technology, household appliances or lifestyle products such as toothbrushes, shavers or furniture fittings.

Precision - not just in fineblanking and stamping
Precision is one of the key building blocks of etampa’s corporate philosophy – and it's not just on account of our ISO/TS certification. Precision also dominates our business processes: from co-engineering to project management, from toolmaking to series production. Precision is everywhere at etampa: it's seen in our strong focus on the customer, it's part of etampa’s zero defects strategy and it informs our consultancy services.

Both fineblanking and stamping use highly precise production processes. With etampa's fineblanking presses, we achieve exceptionally right-angled surface cuts with up to 100% fully-sheared edges applying forces of between 40 and 250 tonnes. The high degree of contour and dimensional accuracy means some later processing steps such as deburring or grinding may be skipped entirely. By deploying the latest generation of servo-driven presses, multiple velocities can be applied during a single stroke of the press. This results in a significant boost to output while maintaining quality standards, to achieve significant gains in operating efficiency.

In the stamping process, state-of-the-art servo-driven stamping presses and high-speed presses ensure optimum utilisation of the high-performance technology. Unlike conventional drive systems, servos permit the combination of high-precision manufacturing with a high rate of output or, by keeping output constant, the achievement of greater precision for the manufactured parts. Depending on the stamped parts' geometry and material quality, an output gain of +50% constitutes a realistic target parameter.

Material thickness and range of materials
While fineblanking can work with materials that are 0.5 mm to 6 mm thick, stamping can be used for thicknesses of 0.1 to 4 mm. In fineblanking, parts are produced using both compound die and progressive die technology whereas stamping mostly applies progressive die systems. In both production processes, materials used include steel and stainless steel, non-ferrous metals, aluminium and titanium.

Zero defects strategy in quality management
Tailor-made, certified quality processes, adjusted to the quality assurance systems run by etampa’s customers, support the company’s zero defects strategy. From certified automotive sector processes such as PPAP or VDA, initial sample inspections to customer specifications or basic measurement reports: each and every part leaves our premises in an absolutely flawless state.

Certified to ISO/TS 16949 and ISO 9001, etampa’s quality management system starts with AQP (Advanced Quality Planning), proceeds through test equipment planning and extends to the statistical analysis of measured values. All our QM work is supported by an infrastructure maintained by efficient instrumentation management. Equipment used here includes tactile CNC measuring machinery, measuring microscopes, leak testing equipment to ensure 100% testing of valve seating or the modern facilities in our part cleanliness test lab for residual contaminant analysis. Other specialist machines such as profilometers round out the portfolio of measuring and testing equipment.

Finishing the job – quite literally
Depending on drawing specifications, post-press finishing may be necessary for parts manufactured by fineblanking or stamping. Examples include requirements as regards hardness, burr-free finishing, corrosion protection, contaminants, roughness or leak-proofing. This involves finishing the job – quite literally: most punched parts will require deburring after production, since burrs or flash can cause the part to malfunction and – in the worst-case scenario – could endanger a person's life. Processes such as vibratory finishing or belt grinding, brushing and chemical deburring ensure premium manufacturing quality. In addition, etampa can still apply technologies such as ball burnishing, disc grinding or double column surface grinding, electrochemical polishing or flat honing. Heat treatments and surface finishing work are each carried out by certified etampa technology partners.