Method of manufacturing a transverse support as a component of a twist beam axle
OwnerKlaus Glaser, Wigbert Christophliemkeinventors
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Abstract
A transverse support as a component of a twist beam axle of a passenger car has a bending resistant, torsionally yielding tubular profiled member formed by cold-forming a tube blank of a micro-alloyed, high-strength steel or a polyphase, higher strength steel, wherein the profiled member has a torsionally yielding central longitudinal section with a double-wall cross-section and opposed torsion-proof end sections. The tubular profiled member can also be made of special steel such as a stainless high-alloy chrome steel.
Claims28
A transverse support as a component of a twist beam axle of a passenger car, the transverse support comprised of a bending resistant, torsionally yielding tubular profiled member formed by cold-forming a tube blank comprised of a micro-alloyed high-strength steel, wherein the profiled member is comprised of a torsionally yielding central longitudinal section with a double-wall cross-section and opposed torsion-proof end sections.
A transverse support as a component of a twist beam axle of a passenger car, the transverse support comprised of a bending resistant, torsionally yielding tubular profiled member formed by cold-forming a tube blank comprised of a polyphase steel of higher strength, wherein the profiled member is comprised of a torsionally yielding central longitudinal section with a double wall cross-section and opposed torsion-proof end sections.
A transverse support as a component of a twist beam axle of a passenger car, the transverse support comprised of a bending resistant, torsionally yielding tubular profiled member comprised of special steel, wherein the profiled member is comprised of a torsionally yielding central longitudinal section with a double wall cross-section and opposed torsion-proof end sections.
A method of manufacturing a transverse support as a component of a twist beam axle of a passenger car, the method comprising
- initially manufacturing a tube blank from a cold-rolled or hot-rolled dual-phase steel of higher strength,
- subsequently cold-forming from the tube blank a tubular profiled member comprised of a torsionally yielding central longitudinal section having a U-shaped double-wall cross-section and torsion-proof end sections, and
- hardening at least an outer surface of the tubular profiled member.
Dependencies are inferred from the claim text.