The present invention provides a novel method for manufacturing a vehicle wheel with a single work piece or band 101. The method comprising the steps of placing a metal band 101 in a mandrel 102 provided at a machining tool; forming the metal band/work piece 101 for making a desired length of rim 201 and a wheel disc 202; spinning a nave portion 401 of the work piece 101 for shaping the wheel disc 202; spinning the work piece 101 for making a disc flange 502 and a gutter portion 504 of the wheel; rolling one end of the rim portion to form the required gutter portion 504 of predetermined shape and thickness; spinning the rim portion further to form a tyre seat and well area 701; forming a flange flare 801 by bending another end of the rim portion; forming the flange portion 901 of the wheel rim by bending the flange flare 801; machining flange edge 1201, nave 1202 and bore; reaming of bolt holes and chamfering bores at the wheel disk portion.

The invention relates to a brake piston 1 for a brake caliper 9 of a disk brake, which is produced using working processes from a metallic material, in particular from a flat metal sheet, and is formed in one piece as a unilaterally open pot with a piston longitudinal axis A, with a piston wall 2 and with a piston head 3.

There is a need for robust and light as well as alternatively constructed, efficiently producible and well guided brake pistons.

The object is achieved firstly in principle on the basis of a cup-shapedly worked brake piston blank 19, in that at least one locally defined, i.e. partially cold-upset or partially ironed, cylindrical piston wall portion is present with a partially deformed piston wall 2 which is configured in adaptively modified manner by plastic material deformation by means of material redistribution (flow) including strain-hardening of its piston wall thickness of s1x.

A method is used to manufacture a surgical instrument including a first tube, and a second tube. The first tube extends from a proximal first end portion to a distal first end portion. The second tube extends from a proximal second end portion to a distal second end portion. The second tube is positioned coaxially within the first tube with the distal second end portion positioned adjacent to the distal first end portion. The second tube defines a lumen. The sensor is secured proximal to the distal second end portion of the second tube. A die is engaged against a distal first end portion of the first tube while first tube rotates about its own longitudinal axis; and the die is simultaneously moved relative to the distal first end portion of the first tube along a predetermined path to form a predetermined shape.

A wheel spinning flash cutting device includes of a rack, a turnover cylinder, a connection rod, a top plate, a first guide rail, a left sliding plate, bearing pedestals, left shafts, rollers, a clamping cylinder, a first motor, a belt wheel, a right base, a synchronous belt, right shafts, second rails, a support, a cutting blade, a second motor, a feed cylinder and a bracket.

A method of manufacturing a preliminary formed body includes an ironing step and a thickening step. In the ironing step, a predetermined range of a plate is formed into a tapered shape in such a manner that while rotating the plate, a transform target portion of the plate is locally heated by induction heating, and a processing tool is pressed against the transform target portion. In the thickening step, a peripheral portion that is a distal end of the tapered shape of the plate is expanded inward in such a manner that while rotating the plate, the peripheral portion is locally heated, and a forming roller is pressed against the peripheral portion to push the peripheral portion in a direction orthogonal to a thickness direction of the peripheral portion.

A method of manufacturing a preliminary formed body includes an ironing step and a thickening step. In the ironing step, a predetermined range of a plate is formed into a tapered shape in such a manner that while rotating the plate, a transform target portion of the plate is locally heated by induction heating, and a processing tool is pressed against the transform target portion. In the thickening step, a peripheral portion that is a distal end of the tapered shape of the plate is expanded inward in such a manner that while rotating the plate, the peripheral portion is locally heated, and a forming roller is pressed against the peripheral portion to push the peripheral portion in a direction orthogonal to a thickness direction of the peripheral portion.

A shock absorber pressure tube defining a working chamber is provided. A piston assembly coupled to a piston rod is slidably disposed in the pressure tube and divides the working chamber into upper and lower working chambers. A reserve tube surrounds the pressure tube to define a reserve chamber. A base valve assembly, position at one end of the pressure tube, controls fluid flow between the lower working chamber and the reserve chamber. The reserve tube comprises first and second open shells that are joined together at longitudinal seams to create a substantially cylindrical shape. The first and second open shells may be made from patchwork blanks, tailor welded blanks, tailor rolled blanks, or tailor heat treated blanks to give different portions of the first and second open shells different thicknesses, strengths, properties, or characteristics.

A method of forming a component by applying a forming load to a blank of material against a mandrel, wherein the mandrel defines the shape of the component to be formed and applying a forming load as a combination of a localised force and localised friction heating.

Provided is a method for manufacturing an aluminium alloy automobile hub, the method comprising the following steps: putting a workpiece in the shape of a shallow hat on a first spinning base, wherein an opening of the workpiece faces upward, and a first upper pressure head extends into the workpiece from above and then fixes the workpiece; and pressing out a rim for spokes on an outer side of a lower portion of the workpiece by means of spinning rollers. In the method, series and improved aluminium alloy sheets are taken as raw materials and are integrally formed by multi-pass powerful spinning machining, such that same are deformed step by step in the whole process according to the properties of aluminium alloy, thereby forming a blank of the hub, and then the hub is formed by finishing.

A method for monitoring the position and assessing the correct position P.sub.i of a work slide (5) of a wedge drive tool (2) in a press (11), without a position sensor. The slide (5) of the wedge drive tool (2) is actuated from an end position (X.sub.E) back to the starting position (X.sub.A) of the slide (5) by a spring (10). The spring (10) is arranged in the wedge drive tool (2). The press (11) is opened from a lower press position to an upper press position while a slide bed (5B) of the wedge drive tool (2) is relieved. The position of the slide (5) is indirectly detected in that at least the restoring force of the spring (10) is detected and evaluated.