A method of forming a vehicle panel includes deforming a sheet metal workpiece between stamping tools to form a first and second edges that converge at a corner of the workpiece's main surface. The first edge is defined by a junction of the main surface and a first flange. The second edge is defined the main surface and a second flange. Forming the first and second edges includes deforming the workpiece so that the second flange has a first region bent to a first angle relative to the main surface and an unwinding region bent to an angle that unwinds from the first region as the second flange approaches the corner. The method includes deforming the workpiece between a second set of stamping tools that deform the first flange and the unwinding region of the second flange until the first and second flanges are bent greater than 90°.

A sheet metal hemming device is provided. The sheet metal hemming device includes a frame and a rolling wheel, a bearing wheel, a first rotating shaft, a second rotating shaft, a sliding block, an arc-shaped guide rail and a driver which are disposed on the frame. The rolling wheel is disposed on the first rotating shaft, the bearing wheel is disposed on the second rotating shaft, and an angle is formed between the rolling wheel and the bearing wheel. The sliding block is slidable relative to the arc-shaped guide rail and is connected to the rolling wheel via the first rotating shaft. The driver is connected to the sliding block for driving the sliding block to slide along the arc-shaped guide rail to adjust the angle between the rolling wheel and the bearing wheel.

A gas-charging and flanging machine (10) includes a sealed chamber (13a). The gas-charging and flanging machine is used for carrying out, inside the sealed chamber, charging of a gas into a workpiece (20) and flanging of the workpiece (20) by spinning and pressing. The gas-charging and flanging machine charges a gas into a workpiece and flanges the workpiece on the same machine such that production efficiency can be improved.

A forming die system and method is used in end forming a pipe or tube for connecting the pipe or tube with a fitting without a sleeve therebetween. The forming die system includes engageable outer dies that together define a bore having a longitudinal axis, die forming surfaces formed on each outer die, grip dies supported in each of the outer dies and configured to hold the pipe or tube, a biasing member that is engageable between a corresponding one of the outer dies and a corresponding one of the grip dies, and a forming pin that is configured to roll around the longitudinal axis in a circular motion at a predetermined angle relative to the longitudinal axis.

A method for manufacturing a liquid fueled rocket engine involves forming a first flange in apposition to a top end of a first tube, fixing an injector head to the first flange to form an inner shell liner assembly, shaping the inner shell liner assembly, forming a second flange in apposition to a top end of a second tube, positioning the inner shell assembly inside the second flanged tube and fixing the second flange to the injector head. Rocket engines manufactured using the method have performance superior to existing rocket engines in at least one parameter.

Apparatus, systems, methods, and articles of manufacture are disclosed herein that flexibly form variable component geometries in a roll-forming process. An example roll-forming apparatus includes a forming unit to move along a stationary component to form a cross-section in the component, a first roll operatively coupled to the forming unit to engage the component, and a second roll operatively coupled to the forming unit to set a forming angle for movement along the component, the component formed between the first roll and the second roll.

A method of forming a vehicle panel includes deforming a sheet metal workpiece between stamping tools to form a first and second edges that converge at a corner of the workpiece's main surface. The first edge is defined by a junction of the main surface and a first flange. The second edge is defined the main surface and a second flange. Forming the first and second edges includes deforming the workpiece so that the second flange has a first region bent to a first angle relative to the main surface and an unwinding region bent to an angle that unwinds from the first region as the second flange approaches the corner. The method includes deforming the workpiece between a second set of stamping tools that deform the first flange and the unwinding region of the second flange until the first and second flanges are bent greater than 90°.

A sheet metal hemming device is provided. The sheet metal hemming device includes a frame and a rolling wheel, a bearing wheel, a first rotating shaft, a second rotating shaft, a sliding block, an arc-shaped guide rail and a driver which are disposed on the frame. The rolling wheel is disposed on the first rotating shaft, the bearing wheel is disposed on the second rotating shaft, and an angle is formed between the rolling wheel and the bearing wheel. The sliding block is slidable relative to the arc-shaped guide rail and is connected to the rolling wheel via the first rotating shaft. The driver is connected to the sliding block for driving the sliding block to slide along the arc-shaped guide rail to adjust the angle between the rolling wheel and the bearing wheel.

The present invention relates to methods of working sheet metal, and sheet metal working apparatus for performing such methods. Such methods include steps of providing a sheet metal workpiece having first and second surfaces opposed to each other and at least one edge, bending the workpiece to form at least a first sidewall portion defined between the edge and a basal region, the first sidewall portion thereby defining a curved fold region in the sheet metal workpiece adjacent the first sidewall portion. Following this, first anvil tool and a first forming tool are provided for contact with and constraint of the first and second surfaces of the sheet metal workpiece respectively. The forming tool and/or the anvil tool are then progressively slid along the curved fold region to cause shear material transfer in the curved fold region to further deform the curved fold region. Such methods can allow for formation of components of similar shape as made at present by deep drawing methods, but with less wastage of the starting material.

Flanged inner ring of a rolling bearing forming part of a wheel hub unit of motor vehicles, having at its axially inner end a rolling edge configured to preload axially a radially inner ring after being plastically deformed by orbital forming. The rolling edge is provided with a conical surface of an axially inner portion of the rolling edge. A first parameter is defined as being the ratio between the conicity of the conical surface expressed in degrees and the thickness of the rolling edge expressed in millimeters and assumes values ranging between 0.03 mm.sup.−1 and 2 mm.sup.−1.