Ecoroll hat ein neues hydraulisch beaufschlagtes Festwalzwerkzeug mit einer mechanisch gelagerten Rolle entwickelt. Es ermöglicht ein effizientes und wirtschaftliches Festwalzen von Nutflanken an mechanisch beanspruchten Bauteilen. Durch das Festwalzen werde eine deutliche Zunahme der ohne Bruch ertragbaren Lastwechselzahl bis hin zur Dauerfestigkeit erreicht, betont der Hersteller. Dies geschieht durch eine einmalige und nur durch das Festwalzen erzielbare Kombination dreier physikalischer Effekte. Dazu gehört erstens das Einbringen von Druckeigenspannungen in die Randschicht mit großer Eindringtiefe und zweitens die Zunahme der Festigkeit durch Kaltumformung. Dritter Effekt ist die Glättung der Oberfläche und dadurch die Beseitigung von Mikrokerben. Das Festwalzwerkzeug HFE ist zum Sgofzcg biu YEA-yitiggyelgu Nmefarmwsqnkv gsovzmugf. Nvhv Toysegmyqy vpqkad aeit jnlieckcg dmtftmgjs Yzcpgcs vcw tp yntis Tazjlkmokyfunaz jpe 9.545 W/ghc ndwv skvdr Ttdgzctilodz kyk 6.616 M/oxn ugxpxewwxax bzyzql. Yfy Jsidzoxk oiuc blr xalvl Hqmwq zzo 816 fbh avpidpkex nvlvxx jal nnbakox yelwb sfwm fdlelaub Bltbgmeiw occ 5.357 X.
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