Steering housing

The steering gear transmits the rotational movement of the steering wheel via the tie rod to the front axle of the vehicle. The steering torque is transmitted via a rack and pinion in the steering housing. The trend towards steer-by-wire systems enables improved driving and steering characteristics. This technology also lays the foundation for self-driving cars by enabling more direct and precise steering. Overall, the steering gear plays a central role in the vehicle’s steering ability and safety.

Features and Machining Requirements

Workpiece material: Aluminium or magnesium
Defined roughness Rz > 40 µm
Thin-walled component tends to vibrate
Interrupted cut
Thruster pad bore with high tolerance requirement

High tool weight (depending on design)
Tight form and position tolerances
High degree of positional accuracy
Complex design of tool solutions
High cutting data requirement in series production
Reliable chip removal due to casting situation (hybrid tools)
Delicate clamping system
Machining in one pass depending on design and clamping

1. Rack bore

PCD boring tool

Guide pads for maximum precision for deep bores with interrupted cut

2. Gear rack bore

PCD boring tool

Thin-walled bore
Unequal number of cutting edges for higher proportion of guidance in the bore
Special axial cutting edge arrangement for a soft cut

3. Thruster bore

PCD boring tool

Cost-effective machining of the thruster bore in a clamping system
First stage with fine boring tool for tight tolerances and precise cutting edge adjustment

4. Druckstückbohrung

PKD-Bohrfräskombinationswerkzeug

Zerspanen von Bohrungen mit engen Toleranzen
Zirkularfräsen des Gewindes in der gleichen Bohrung
Wirtschaftliches Zerspanen zweier Merkmale mit einem Werkzeug

5. Haltenut

PKD-Zirkularfräswerkzeug

Wirtschaftliches Zirkularfräsen filigraner Bauteilkonturen
Intelligente Schneidenanordnung für hohe Oberﬂächenqualitäten