High pressure presses, components for high pressure presses and related methods are provided herein. In one embodiment of the invention, a press base may include a piston cavity formed in the press base and a piston cavity sleeve positioned in the piston cavity. The piston cavity sleeve may include a wall having an outer surface and an inner surface opposite the outer surface. The piston cavity sleeve may further include a floor having an upper surface and a lower surface opposite the upper surface. An outer radius may be formed at a juncture of the outer surface of the wall and lower surface of the floor and an inner radius may be formed at a juncture of the inner surface of the wall and upper surface of the floor. The inner radius may exhibit a radius of curvature that is greater than a radius of curvature of the outer radius.

A method to modify the geometry of a connecting rod of an internal combustion engine includes providing a connecting rod having a crankshaft bore at a first end, wherein the first end has a bearing cap and a bottom end portion of the connecting rod, mating the bearing cap with the bottom end portion of the connecting rod to form the crankshaft bore of the connecting rod, machining a width upset portion of the bottom end portion to reduce a width of the bottom end portion of the connecting rod, machining a width upset portion of the bearing cap to reduce a portion of a width of the bearing cap, and reducing the width of the bottom end portion of the connecting rod and the portion of the width of the bearing cap to a width smaller than a cylinder bore of the internal combustion engine.

A method is provided for designing and producing fiber-reinforced polymer (FRP) pistons. Pistons made with FRP have a lower mass than prior art metal pistons conferring advantageous engine efficiency and stability. FRP pistons also increase the thermal efficiency of engines by having a lower thermal conductivity, with tighter piston-to-bore clearance, and/increased air-fuel ratio than pistons of metal. The technical parameters of the piston are identified, and a piston body blank is produced. The blank is then machined, a bearing surface for the pin bore is created, the piston blank is optionally coated, is optionally subjected to Heavy Metal Ion Implantation (HMII) treatment and is subjected to sodium silicate impregnation to produce the final pistons.

A method for assembling a dual-head pulling rod involves attaching pulling heads to two ends of a rod body through threaded connection using a system that includes a foundation, on which a rod dispensing device, an inclined guiding plate, a conveying flap, a head dispensing device, a head mounting unit, a clamping device, an assembling device and a V-shaped output channel are provided. The inclined guiding plate is inclined and uses its ramp to guide a rod body falling thereon. The conveying flap is swingable between an input position and an output position. The conveying flap at the input position receives the rod body coining from the inclined guiding plate and outputs the rod body to the clamping device.

The invention relates to a method for producing a piston rod unit, or a shaft, in lightweight construction, with a rod which is hollowly-drilled by means of a deep bore into the rod shank, and the resulting rod opening is closed subsequently by means of a forging process.

A method of manufacturing an engine connecting rod includes mounting a rod on a first mount configured to rotate, mounting a cap on a second mount configured to rotate, positioning a spindle head such that a tool of the spindle head contacts a first connecting end of the rod, machining the first connecting end by spinning the first mount, machining the first connecting end by moving the spindle head, positioning the spindle head such that the tool of the spindle head contacts a second connecting end of the cap configured to be coupled to the first connecting end, machining the second connecting end by spinning the second mount, and machining the second connecting end by moving the spindle head. The spindle head is moveable in a first direction extending between the first and second mounts, a second direction perpendicular to the first direction, a third direction perpendicular to the first and second directions, and rotatable about an axis.

A piston rod unit and a method for producing a piston rod unit, or a shaft, in light-weight construction, with a rod which is hollowly-drilled by means of a deep bore into the rod shank, and the resulting rod opening is closed subsequently by means of a forging process.

Methods of designing and producing a connecting rod using carbon fiber reinforced epoxy molding compound composite material are provided, such that the method allows connecting rod designer to machine several different connecting rod designs, lengths, and beams. The material is molded into a near-net shape. After molding, the blank is machined into the final shape of a connecting rod and the material is sealed.

The invention provides a design method for a connecting rod. The connecting rod includes a first end, a shank and a second end; and the shank is connected between the first end and the second end. The design method includes: determining a weight m.sub.1 of a standard steel connecting rod; determining a weight m.sub.2 of a nodular cast iron connecting rod having the same size with the standard steel connecting rod; and simulating to reinforce the shank with a reinforcement material having a preset weight m, and calculating a size of the reinforced shank; where m.sub.1>m.sub.2, and m<m.sub.1−m.sub.2. The present invention overcomes the technical problem that existing steel connecting rods have larger weights.

A grooving tool configured to form a substantially V-groove shaped breaking promotion portion for breaking and splitting a large end part of a connection rod at the large end part along a cutting direction, comprising a rough-machining blade to cut a peripheral surface of a penetrating hole provided at the large end part, a finishing blade to finish a portion cut by the rough-machining blade, and a support member supporting the rough-machining blade and the finishing blade in order along a direction opposite to the cutting direction, wherein the rough-machining blade is configured such that a height h1 of its blade tip from a bottom face of a first cutting-blade attachment portion is lower than a height h2 of a blade tip of the finishing blade which is made of a higher-hardness material than the rough-machining blade.