US 2023/0191472 A1 · FREE-BENDING FORMING APPARATUS FOR TUBULAR COMPONENT MADE OF DIFFICULT-TO-DEFORM MATERIAL USING DIFFERENTIAL TEMPERATURES AND METHOD THEREOF

Abstract

A free-bending forming apparatus for a tubular component using differential temperatures and a method thereof are disclosed. The apparatus includes an isothermal heating device and a heating device for the differential temperatures. The isothermal heating device is configured to preheat an inside and an outside of a bending section of the tubular component to a predetermined temperature to form a preheated bending section before bending and forming. The heating device for the differential temperatures is configured to heat the inside and the outside of the preheated bending section of the tubular component respectively to different temperatures, and the temperature at the outside is higher than that at the inside. The heating device for the differential temperatures is provided between a pressing device and a guiding mechanism, and the isothermal heating device is provided between the pressing device and the heating device for the differential temperatures.

Claims17

Dependent claims

A free-bending forming apparatus for a tubular component using differential temperatures, the apparatus comprising:

a spherical bearing;
a bending die;
a guiding mechanism;
at least one infrared thermometer;
a pressing device;
a feeding device;
an isothermal heating device;
a heating device for the differential temperatures;
wherein the heating device for the differential temperatures is disposed between the pressing device and the guiding mechanism;
and
wherein the isothermal heating device is disposed between the pressing device and the heating device for the differential temperatures.

8 more elements

A method for free-bending a tubular component using differential temperatures, the method comprising:

preheating, via a at least one heating device of a free-bending forming apparatus, the tubular component to enable an inside and an outside of a preheated bending section of the tubular component to have a same initial temperature;
and
heating, via the at least one heating device of the free-bending forming apparatus, the inside and the outside, respectively, of the preheated bending section of the tubular component to at least one different forming temperature according to a deflection direction and a bending angle of the bending die, wherein a first forming temperature of the different forming temperatures which is at the outside of the bending section is higher than a second forming temperature of the different forming temperatures which is at the inside of the bending section.

Dependencies are inferred from the claim text.

Free-bending forming apparatus for tubular component made of difficult-to-deform material using differential temperatures and method thereof

Life of this patent

Free-bending forming apparatus for tubular component made of difficult-to-deform material using differential temperatures and method thereof

Life of this patent

Abstract

Claims17