A hydraulic forging press machine and a control method, whereby surging of the forging load or dead zones where the forging speed goes to zero is suppressed, and forging is performed with high precision throughout a wider range than the prior art, from low to high load. Pressure cylinders have a main pressure cylinder configured so working fluid is supplied during forging, and secondary pressure cylinders are configured so supplying and stopping of the supply of working fluid thereto are switched in response to the forging load, head-side hydraulic chambers of the secondary pressure cylinders being connected to a head-side hydraulic chamber of the main pressure cylinder via electromagnetic switching valves. Only the main pressure cylinder is used until the forging load exceeds a set load, and the number of secondary pressure cylinders used is sequentially increased as the forging load increases after the forging load exceeds the set load.

The disclosure describes example systems and techniques for controlling microstructure of a superalloy substrate by controlling temperature during forging and using multiple die forging stages to formation of grain boundary phases of the superalloy, and components formed by such example systems and techniques. The method includes heating a substrate to within a forging temperature range. The substrate includes a nickel-based superalloy, and the forging temperature range is below an eta phase solvus temperature of the substrate. The method includes applying a plurality of die forging stages to the substrate to form a component preform. The method includes maintaining the substrate within the forging temperature range during application of the plurality of die forging stages and cooling the component preform.

Provided is a cylindrical sputtering target made of a metal material, which has reduced particles. The sputtering target includes at least a target material, wherein the target material comprises one or more metal elements, the target material has a crystal grain size of 50 μm or less, and the target material has an oxygen concentration of 1000 ppm by mass or less.

A system and method of making a forged part. The method may include forming a workpiece in a first die unit that may be disposed in a first press, transferring the workpiece to a tooth forming die unit that may be disposed in a second press, and forming the workpiece into the forged part by forming a set of teeth on the workpiece with the tooth forming die unit.

A gas sensor (1) has a sensor element (21) extending in an axis direction and having, at a top end side thereof, a detecting portion (22) that detects gas; a stainless steel-made tubular metal shell (11) enclosing a radial direction periphery of the sensor element (21) and holding the sensor element (21) and having (a) a brim portion (14) protruding outwards in a radial direction and (b) a crimp portion (16) formed at a rear end side of the metal shell (11); and a sealing member (41) placed between the sensor element (21) and the metal shell (11). The crimp portion (16) is bent inwards in the radial direction and pressing down a rear end of the sealing member (41) toward the top end side. A Micro Vickers hardness of a cross section along the axis direction of the crimp portion (16) is 140 to 210 Hv.

A process for stamping metallic member with forging thickness of side walls, the process comprising: a forming step by forging, which forms the metallic member by forging; a step for forging thickness of the side walls, which extrudes the side walls of the metallic member to increase thickness of the metallic member; a specular treatment step with diamond cutter, which generates metallic texture of the side walls of the metallic member; and a finish step for forging thickness of the side walls of the metallic member. Wherein the metallic member, for example, is a sheet stamping component.

A method of cold forming an outer arm of a rocker arm assembly in a cold forming machine includes providing a slug having a first end and a second end, extruding the slug at the first end to establish two different widths of the slug, compressing the slug to form an upper angled surface and a lower angled surface at the second end, and compressing the slug to form an inner arm window defined by a pair of side walls and a pair of end walls.

The invention relates to a method for producing metal components, consisting at least partially of a copper alloy, comprising the following alloy components in wt. %: 0 wt. %<Sn≤8 wt. %; 0 wt. %<Zn≤6 wt. %; 0.1 wt. %≤S≤0.7 wt. %; optionally no more than 0.2 wt. % phosphorus; optionally no more than 0.1 wt. % antimony; and optionally iron, zirconium and/or boron alone or in a combination of two or more of said elements of no more than 0.3 wt. %; and unavoidable impurities, and the rest being copper. The method comprises the following stages: (a) melting the copper alloy: (b) producing press blanks from the copper alloy; and (c) pressing the press blanks at a suitable pressing temperature to form the metal components. The invention also relates to a metal component which has been produced according to a method of this type.

A novel hollow shaft manufacturing method includes the steps of hollow cold-rolling of seamless steel pipe, cutting, annealing and surface treatment, forming by forging, precision machining, and heat treatment. The present invention uses a new process instead of the traditional process. The forging process using high-strength cold-rolled seamless steel pipes has fewer steps than using bar stock: saving three forging passes, one annealing pass and one surface treatment pass, hence saving about ½ in time and cost, shortening the cycle, reducing costs, reducing energy consumption and reducing the three wastes, increasing the stock utilization rate to about 68%, and reducing the inter-process cost calculated by weight. For the same products, using this process can shorten the production cycle.

A method for manufacturing a blade, the method includes casting a nickel alloy blade precursor having an airfoil and a root. The airfoil and the root are solution heat treating differently from each other. After the solution heat treating, the root is wrought processed. After the wrought processing, an exterior of the root is machined.