Erowa workholding system offers quick changeover of PM tooling

February 26, 2014

February 26, 2014

Powder Metallurgy (PM) parts are becoming increasingly sophisticated and the variety of product shapes is on the rise, states Swiss tooling system manufacturer Erowa AG. The frequent changeover of tooling used in powder presses can greatly reduce valuable production time.

A workholding system is the interface between the punch, die and press adapter. With the use of the Erowa PM Tooling rapid-change workholding system the changeover times for pressing tools are kept to a minimum, claims the company.


Fig. 1 Erowa PM Tooling: Press adapter with PM Tooling punch

chuck (1) and die-plate chuck (2)

In Erowa’s system a single or multi-level powder press is equipped with the appropriate PM Tooling chucks. There are die chucks and punch chucks (Fig. 1). The chucks are integrated directly into the powder press or press adapter.

The chucks are precisely aligned to each other with the help of a specially designed alignment set with no need for further adjustments. Punches and dies can be quickly exchanged and clamped with high precision. A 0.002 mm positioning accuracy guarantees an easy start after changeover, states Erowa.

New punches and dies to be manufactured are mounted on Erowa PM pallets and produced on the PM Tooling system. The PM Tooling system forms the basis on all machines and ensures consistency throughout the production process. From milling and grinding to EDM sinking and EDM wire-cutting to pressing, the 0.002 mm positioning accuracy is reliably observed. The precisely manufactured punches and dies are then clamped in the press adapter without further alignment.

Compatibility with other EROWA workholding systems allows for the complete automation of production machines. The reference positions are given by the precisely aligned PM Tooling chucks.

The benefits claimed by Erowa include a reduction in downtime, a significant increase in the precision of the whole production process and increased reliability. PM Tooling chucks are completely sealed against dirt and guarantee highly precise clamping of punches and dies. 


February 26, 2014

In the latest issue of PM Review…

Download PDF

Extensive Powder Metallurgy industry news coverage, and the following exclusive deep-dive articles and reports:

  • From powder modification to rejuvenation: Fluidised Bed Reactors in metal powder production and Additive Manufacturing
  • Retech: Enabling the atomisation of reactive and refractory alloys at substantially higher levels of productivity and lower cost
  • Sustainability in Powder Metallurgy: Highlights from the 41st Hagen Symposium
  • Innovations from Japan’s Powder Metallurgy industry: award winners highlight novel automotive and healthcare applications

The latest news from the world of metal powders, delivered to your inbox

Don't miss any new issue of PM Review, and get the latest industry news. Sign up to our weekly newsletter.

Sign up

Join our community

Discover our magazine archive…

The free-to-access PM Review magazine archive offers unparalleled insight into the world of Powder Metallurgy from a commercial and technological perspective through:

  • Reports on visits to leading PM part manufacturers, metal powder manufacturers and industry suppliers
  • Articles on technology and application trends
  • Information on materials developments
  • Reviews of key technical presentations from the international conference circuit
  • International industry news

All past issues are available to download as free PDFs or view in your browser.


Browse the archive


Looking for PM production equipment, metal powders, R&D support and more?

Discover suppliers of these and more in our
advertisers’ index and buyer’s guide, available in the back of PM Review magazine.

  • Powders & materials
  • Powder process, classification & analysis
  • PM products
  • Atomisers & powder production technology
  • Compaction presses, tooling & ancillaries
  • Sintering equipment & ancillaries
  • Post-processing
  • Consulting & toll sintering
View online
Share via
Copy link