49results about How to "Reduce forming force" patented technology

The invention relates to a powder reinforced stirring friction riveting device. The powder reinforced stirring friction riveting device comprises a stirring friction riveting main shaft, a C-shaped rack and a workbench, wherein the stirring friction riveting main shaft comprises a rotary mechanism, a feeding mechanism, a vibrating/rotating mixing mechanism and a powder feeding mechanism; the stirring friction riveting main shaft is used for realizing the rotary motion and feed motion of a rivet and feeding and mixing powder; the C-shaped rack is used for fixing the stirring friction riveting main shaft and the workbench; and the workbench is mainly composed of a force cell, a sensor head, a tool die and a tool pressing plate and is used for clamping a to-be-riveted workpiece and testing the riveting acting force of the main shaft in real time. According to the powder reinforced stirring friction riveting device, the powder reinforced stirring friction riveting between same or differentlight plates at room temperature can be realized, a riveted stirring friction riveting joint without key hole defects and with good joint forming quality and high connecting strength can be obtained,the required riveting forming force is less than that of traditional riveting, and the powder reinforced stirring friction riveting device has the advantages of high efficiency, simplicity and convenience in operation and low energy consumption.

The invention provides a metal glass optical grating. According to the metal glass optical grating, metal glass serves as a substrate, and optical grating bodies with periodical groove structures are arranged on the substrate. The invention further provides a method and a device for manufacturing the metal glass optical grating. The metal glass optical grating has the advantages of being convenient to manufacture and high in accuracy, strength, hardness, toughness, stability and corrosion resistance.

A frozen forming method for a large-size thin-walled aluminum alloy component using an aluminum alloy tailor-welded plate is described. An aluminum alloy tailor-welded plate is cooled to a temperature with a cryogenic fluid medium, and temperature of a weld zone is regulated to be lower than that of a base metal zone; and the component is fabricated by a tool integrally with aluminum alloy tailor-welded plate, by placing aluminum alloy tailor-welded plate onto tool; assembling tool and filling with cryogenic fluid medium so temperature of tool is −150 to −196 degrees Celsius; and apply pressure to deform the aluminum alloy tailor-welded plate when temperature of a weld zone reaches −150 degrees Celsius to −196 degrees Celsius, thereby facilitating forming the aluminum alloy tailor-welded plate to a designed shape of the aluminum alloy component; and disassembling the tool, and taking out the aluminum alloy component.

The invention relates to a disc type forge piece forging mold and a forging method, and belongs to the technical field of metal forging. The mold comprises a finished upper mold and a finished lower mold, wherein the appearance of an inner cavity formed after the finished upper mold and the finished lower mold are closed is matched with that of a finished forge piece; the mold further comprises at least one pair of front upper molds and front lower mold, wherein an inner cavity formed after each front upper mold and the corresponding front lower mold are closed is composed of a molding portion of which the appearance is matched with that of the finished forge piece and a containing portion used for accepting the appearance of a forge piece blank. According to the disc type forge piece forging mold and the forging method, a free forging technology is replaced with a mold forging technology, the forge piece is high in molding precision, part of disc type pieces can adopt a precise mold forging technology, materials are saved, and the material utilization rate is significantly increased; in addition, by adopting a partition molding method, the molding force in the whole molding process is decreased, production of the disc type pieces of the large specification can be completed only by adopting press equipment of small tonnage, the potential of the equipment can be fully excavated, and unnecessary equipment investment and energy consumption are avoided.

A method for manufacturing the clamping plat of anchor device includes such steps as providing a plate with needed thickness, blanking to obtain an isosceles trapezoidal plate, punching with a bending die set to obtain an arc plate, pre-shaping with the shaping die sets A and B, fine shaping with the shaping die set C, and machining internal teeth by squeezing or milling. The said all die sets are composed of male die and female die.

A method for producing a composite rolling bearing (1) having a bearing flange (3) and at least one rolling bearing (4, 5) held on the bearing flange (3) by an inner ring (6, 7). In order to be able to fix the inner ring (7) on the bearing flange (3) with axial preloading without expansion, the inner ring (7) is acted upon by a holding-down device (23) that radially holds down the inner ring (7) and is preloaded against the inner ring (7) by a regulated axial force (F), and, by way of an advancing cone (21) introduced radially on the inside axially into the bearing flange (3), material (11) present on the bearing flange (3) is displaced radially towards the outside into a recessed formation (15, 16) in the inner ring (7).

The invention discloses an earring forging forming method. The method is characterized in that raw materials which fit an earring product by size are forged into a primary blank being big in one end and small in the other end; the primary blank is fed into a die and subjected to die forging to obtain a final blank; and the final blank is processed by forging flash cutting, shot blasting and mechanical processing to obtain a final earring product. The method has the advantages of being simple, and practical, reducing the forging forming force, increasing the forging yield, and increasing the material utilization rate.

The invention discloses a two-step blow forming method and a two-step blow molding device for an amorphous alloy special-shaped tube, and belongs to the field of the plastic forming of amorphous alloys. The method comprises the following steps of: heating a preformed variable-thickness amorphous alloy plate blank to a supercooling liquid phase area, introducing preheating pressure gas, and performing blow forming until the plate blank is adhered to a die to complete the performing of an amorphous alloy tube blank; and cooling the tube blank quickly, heating to the supercooling liquid phase area to perform secondary blow forming, and after cooling, opening the die to complete the forming of the amorphous alloy special-shaped tube. In the method, the forming capacity of amorphous alloy parts with complex shapes is improved by the two-step preblow forming of the variable-thickness amorphous alloy plate blank and the amorphous alloy tube blank, and the method and the device also can be used for the blow forming of containers and shell and cover parts which are made of amorphous alloy.

The first purpose of the invention is to provide a forging and pressing method of steel rail heel; a steel rail heel comprises a pre-forging heel and a final forging heel; the pre-forging heel comprises a first section, a second section, and a third section; the final forging heel comprises a fourth section and a fifth section; the method specifically comprises the following steps: implementing a first stage forging and pressing after heating the first section, the second section and the third section, wherein the first two sections are molded by forging and pressing, the third section is pre-deformed; and implementing a second stage forging and pressing after heating the last three sections. The provided forging and pressing method adopts a measure of molding twice, thereby being able to solve the defect that the size of the molded final forging heel is unqualified, as well as greatly reducing the molding force in the entire steel rail heel product molding process. The second purpose of the invention is to provide a three-position molding die with a simple integral structure; a second upper die section inside a pre-forging rail molding cavity and a first pre-forging insert inside a final forging molding cavity are both in detachable structures, thereby meeting different requirements to the three-position molding die in the twice forging and pressing process; the three-position molding die is convenient to be assembled, and strong in practicability.

The invention relates to a method for producing a one-piece lock striker and to a lock striker produced according to said method. The lock striker (1) comprises a base plate (1) and a lock bracket (3). A metal starter blank (11) is formed into a lock striker by cold forming, in particular by cold upsetting. The starter blank (11) is substantially block-shaped or cylindrical and is formed in such a way that the lock striker (1) becomes strain-hardened.

A joint is produced in at least two overlapping workpieces using a joining tool including a punch reciprocally disposed in a cylinder. The workpieces are disposed between the tool and a die. The tool applies a compressive force to deform the workpieces into a joint at a joining area between the tool and die. Continuous ultrasonic energy is applied to at least one of the workpieces in the joining area for at least part of the time during production of the joint to increase the ductility of at least one of the workpieces in the joining area. This induces an acousto-plastic effect in the material being formed which temporarily reduces its strength so as to exhibit increased ductility. The joining method may be used in self-piercing riveting and clinching techniques and enables viable joints to be formed in high strength materials or thick sheets of material.

An electrically assisted forming process and device for a high-strength metal alloy thin-walled pipe includes a die sleeve, wiring terminals, a pulse power supply, a die seat, sealing baffle plates, a drawing die, and a cooling water circulation chamber. A process for forming a high-strength metal alloy thin-walled pipe includes first, graphite or fusible metal, i.e., an aluminum rod, is introduced into a high-strength metal alloy pipe to be drawn to fill the whole pipe; and then, pulse current is introduced into a plastic deformation area of the thin-walled pipe. A cooling device can be provided to achieve a good cooling effect. The thin-walled pipe with corresponding length is cut according to a production requirement after processing is completed, and annealing treatment is performed in a vacuum heat treatment furnace.

The present invention relates to a method for producing a lightweight sheet-metal component with varying wall thicknesses w1, w2, characterized by the following method steps: extruding a lightweight metal to form a profile (1) with a non-planar profile cross section, wherein the wall thicknesses w1, w2 of the profile cross section differ from one another in at least two regions, cutting the profile (1) to length into profile pieces, widening the profile pieces, forming the flattened profile piece into a three-dimensional shaped sheet-metal component (8), wherein the sheet-metal component (8) has at least two regions with wall thicknesses w1, w2 that are different from one another.

The invention relates to the technical field of machinery, in particular to an automobile part thermal forming system and an operating method thereof. The automobile part thermal forming system comprises a loading device, a press, a heating furnace, and a blanking device, and is characterized in that an inlet of the heating furnace is formed in front of the loading device; the outlet of the heating furnace is connected with the press; and the blanking device is arranged in front of the press. Compared with the prior art, the provided thermal forming system is coupled with reasonable technology, the tensile strength of the product is increased, the forming force is low, the die loss is low, the forming property is good, the forming is controlled, the forming elastic recovery is low, the part intensity indicators are remarkably increased, and the weight reduction advantage is obvious with the maximum weight reduction of 20-50%.