Servo Motor Accelerates Precision Forming

Sept. 2, 2015
The Feintool XFT 1500speed forms precision parts at up to 200 strokes per minute.

Feintool’s newest machine is described as “the fastest fineblanking press to date”

In forming processes, precision is the primary standard for successful performance, but speed is an increasingly important factor too. Recently, Feintool introduced the fastest fineblanking press to date — the XFT 1500speed — which performs at up to 200 strokes per minute.  "Our main goal was to take the advantages of fineblanking to a level of production that outstrips conventional blanking in terms of part quality, clean cut percentage, and dimensional repeatability in sheet thicknesses of over two millimeters," stated Markus Schaltegger, head of presses and systems for Feintool.

Fineblanking is a process that simultaneously compresses and shears sheet metal in order to reduce the amount of tearing along the edge. The results are blanks with neatly defined shapes and edges that are completely smooth.

Fineblanking differs from conventional blanking or shearing because of the process precision of the process. The combination of fineblanking and forming offers new industrial series production possibilities for cost-efficient complex parts production.

Feintool specializes in the development of fineblanking systems and the production of fineblanked and formed parts, notably for the automotive industry.

The 1,500-kN XFT 1500speed replaces an earlier Feintool machine design, the GKP 100/160 and MFA 1600, and is compatible with existing tools. The developer claims the new design can double the output of the previous machines, but achieves its peak potential when using specially developed, custom high-speed tools.

Manufacturing costs and investment costs per part are lower with less energy consumption and press maintenance, it claims, and it’s also capable of turning out small batch sizes economically.

Without a gearbox, the drive motor operates at 200 RPM versus 1,200 RPM. The servo motor has a faster dynamic response and can be programmed with absolute precision.

The Feintool Motion Control unit can define acceleration, part removal and intermediate stops to an accuracy of two milliseconds. "With stroke rates this high, it was clear to us that tool safety should have special priority," stated Schaltegger. If a malfunction occurs, the XFT 1500speed only needs a braking distance of two millimeters."

About the Author

Ellen Baran | Content Marketing | Producer - LNB Web Design/Cynosure

Ellen Baran has been involved in the digital space for over 12 years. Specializing in user engagement, Ellen has worked closely with Robert Brooks, Editor-in-Chief of American Machinist and Foundry magazines to develop unique and compelling content for readers.

Ellen is the owner of LNB Web Design/Cynosure and graduated from Columbia College in Chicago, IL majoring in Communications.

About the Author

Robert Brooks | Editor/Content Director - Endeavor Business Media

Robert Brooks has been a business-to-business reporter, writer, editor, and columnist for more than 20 years, specializing in the primary metal and basic manufacturing industries. His work has covered a wide range of topics including process technology, resource development, material selection, product design, workforce development, and industrial market strategies, among others.

Currently, he specializes in subjects related to metal component and product design, development, and manufacturing—including castings, forgings, machined parts, and fabrications.

Brooks is a graduate of Kenyon College (B.A. English, Political Science) and Emory University (M.A. English.)