• Collage_Schwenklager_Slider

Paliers de pivotement / Supports de roue

Les supports de roues sur l'essieu arrière et les paliers de pivotement sur l'essieu avant portent les roues et s'avèrent déterminants pour le confort de conduite et la sécurité. Ils servent de points de fixation pour le moyeu de roue, le disque de frein, l'étrier de frein et le bras de suspension. Leur construction varie en fonction du type d'essieu afin de répondre aux exigences spécifiques des véhicules. Les composants doivent pouvoir supporter des charges de roue élevées et sont donc fabriqués dans des matériaux solides et résistants à la corrosion, tels que l'aluminium forgé ou la fonte à graphite sphéroïdal. Leur structure robuste assure la performance et la sécurité du véhicule.
Swivel bearing brake housing with labeling

Caractéristiques principales de l’aluminium

  1. Barre de torsion, jambe de force et tirant
  2. Alésage du palier principal
  3. Pré-usinage de l'alésage du palier principal

Caractéristiques et exigences d’usinage

Aluminium, with its combination of high strength and very high flexibility, is the ideal workpiece material for safety-critical components that also need to be lightweight. These properties make it the perfect choice for unsprung masses.

  • Forged aluminium or spheroidal cast iron
  • High demand on quality as component is safety-relevant
  • High quantities
  • Close position tolerances
  • High process reliability and dimensional accuracy

  • Long chipping due to wrought alloy and forged/ heat treated
  • More difficult tool accessibility depending on clamping fixture and number of process steps
  • Machining in a clamping system
  • Multi-spindle machining or custom machines

1. Thrust strut, camber strut and tension strut

Kombinationswerkzeug_Schwenklager

1. Combination Tool

  • Fine machining of close diameter tolerances with long projection length
  • High shape accuracy due to precisely ground blades

1. Drilling from solid

  • Cost-effective drilling from solid using QTD indexable cutting edge

2. Fine boring + bearing seat machining

  • Fine machining of bores using pad-guided fine-bore cutting edges for tight tolerance requirements

3. Reverse machining

  • Reverse circular milling of chamfers with replaceable tangential inserts

2. Main bearing bore

Hauptlagerbohrung

PCD Miling Tool

  • Short cycle times due to finish milling of all diameters and contours with one tool
  • Reliable machining with short chips

3. Pre-machining of main bearing bores

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3. OPTIMILL-DIAMOND-SPM

  • Ideal for making openings or pockets
  • Solid carbide design or with brazed PCD blades

Swivel bearing made of cast iron with labeling

Key Features Cast Iron

  1. Connection steering arm
  2. Milling machining
  3. Connection swing arm/suspension arm
  4. Main bearing bore

Features and Machining Requirements

In comparison to aluminium, these materials are more
cost-effective but have a higher specific weight. Cast iron
is resistant to wear and tear and can withstand high loads.

  • Forged aluminium or spheroidal cast iron
  • High demand on quality as component is safety-relevant
  • High quantities
  • Close position tolerances
  • High process reliability and dimensional accuracy
  • High abrasiveness
  • More difficult tool accessibility depending on clamping fixture and number of process steps
  • Reduction of cutting forces due to positive cutting edge geometry
  • Adapted cutting data
  • Controlled chip breaking

1. Connection steering arm

Anbindung_Spurlenker

Disc Milling Cutter

  • Reliable milling due to tangential technology
  • Eight cutting edges per indexable insert for cost-effective machining
  • Vibration damper to reduce vibration

2. Milling machining

Fräsbearbeitungen

NeoMill-8-Corner

  • Maximum economic efficiency for corner milling
  • Eight cutting edges per indexable insert for cost-effective machining
  • Large cutting depths up to 8 mm

3. Connection swing arm/suspension arm

Anbindung Schwinge

Taper Reamer

  • Maximum accuracy thanks to guide pads and μ-precise adjustment of indexable inserts
  • Insert technology for maximum flexibility in the choice of cutting material for optimisation of tool life and surface quality

4. Main bearing bore

Hauptlagerbohrung_Gusseisen.jpg

1. Pre-machining

Boring Tool With Indexable Inserts

  • Precision boring tool with cartridges
  • High flexibility due to quick, straightforward interchangeability
  • Adjusting feature for long adjustment range

2. Semi-finish machining

Bore Milling Combination With Indexable Inserts

  • High effectiveness due to the usage of tangential technology
  • Cartridge for high flexibility due to quick, straightforward interchangeability

3. Fine machining

High-Performance Reamer HPR400

  • Reliable machining of the large diameter
  • Easy to handle without setting effort
  • High accuracy: Precision of a brazed reamer