Hard-coated brake discs become a hot topic

Alongside tire wear and the combustion of fossil fuels, brake abrasion contributes to the high particulate pollution caused by vehicles with combustion engines and electric or hybrid drives. The automotive industry needs innovative technical solutions to reduce this contamination. A series process, in which. laser cladding provides brake discs with high-quality corrosion protection and a wearresistant hard coating, is now available to reduce brakerelated particulate emissions is available. This innovative hard coating process leads to high-quality anti-corrosion and wearresistance.

Coating and grinding process

JUNKER offers brake disc coating and grinding innovations, allowing optimum friction pairing and reduced particulate emissions. During the grinding process, the brake disc is simultaneously ground on its parallel sides with two opposing grinding wheels. This state-of-the-art manufacturing process achieves perfect flatness and precise axial runout, and the coating thickness deviation is significantly reduced

Highlights
• Shortest cycle time compared to competitive processes
• Optimal turnkey solution for coating and grinding
• Highly productive grinding process
• Tooling costs per brake disk at benchmark level
• Exact parallelism and axial runout
• Minimum thickness deviation (DTV)
• Lowest media consumption costs compared to competitive processes
• Reduced heat due to innovative grinding process leads to minimal distortion
• Closed loop between coating system and grinding machine

Technical data JUDISC machine
• X-axis travel: 200 mm
• Z-axis travel: 650 mm
• Grinding wheel diameter: 500 mm
• Grinding wheel width: 90 mm Technical data brake disc
• Friction lining outer diameter: min. 220 mm, max. 500 mm
• Total width: max. 150 mm
• Weight: max. 30 kg

Die JUNKER Gruppe

Die JUNKER Gruppe mit Stammsitz in Nordrach, Deutschland, ist Weltmarktführer in der Herstellung von CBN-Hochgeschwindigkeits-Schleifmaschinen. Knapp 1.300 Mitarbeiter weltweit sichern den technologischen Vorsprung des Unternehmens. Alle namhaften Automobilhersteller und deren Zulieferer sowie Werkzeughersteller und andere Branchen vertrauen auf die innovativen Schleifkonzepte von JUNKER. Ob für die Massen- oder Kleinserienproduktion: JUNKER Schleifmaschinen arbeiten präzise, wirtschaftlich und zuverlässig.
Neben der Erwin JUNKER Maschinenfabrik gehören die LTA Lufttechnik GmbH und die Zema Zselics Ltda. zur JUNKER Gruppe. Die LTA Lufttechnik GmbH stellt Luftfilterund Brandschutzanlagen für Gewerbe und Industrie her. ZEMA verstärkt die Gruppe als Spezialist im Schleifen mit Korund.

Erwin Junker
Maschinenfabrik GmbH
Junkerstraße 2
77787 Nordrach
Deutschland
info@junker.de
+49 7838 84-0
www.junker-group.de

LTA Lufttechnik GmbH
Junkerstraße 2
77787 Nordrach
Deutschland
info@lta-filter.com
+49 7838 84-245
www.lta-filter.com

ZEMA Zselics Ltda.
Estrada do Capivari 741
Cep 09838-900
S.B. do Campo, São Paulo
Brasilien
zema@zema.com.br
+55 11 4397-6000
www.zema.com.br