115 results about "Material Deformation" patented technology

The invention mainly relates to the technical field of extrusion rolling and drawing of metal wire bars, in particular to a method for rolling metal wire bars under a magnetostatic field auxiliary effect. The method is characterized by comprising the following steps: a magnetostatic field is installed in the advancing direction of metal wire bar blanks; before the metal wire bar blanks are rolled, extruded and drawn, the metal wire bar blanks are suffered from a magnetic field effect in the process of passing through the magnetostatic field area; the longitudinal center line of the metal wire bar blanks is consistent with the advancing direction thereof; and the blanks are rolled, extruded and drawn by rollers after the treatment of the magnetostatic field auxiliary effect. For multiple times of rolling, extrusion and drawing, the magnetostatic field treatment is performed before each time of rolling. The method has the following advantages: the material deformation resistance is prominently reduced; the rolling defects are reduced; the finished product size precision is high; the material mechanical performance, in particular the strength and the toughness are improved; and the synchronous reinforcement of the material toughness is realized.

The invention discloses a method for axially feeding, extruding, rolling and forming a spline shaft by medium-frequency and high-frequency sensing heating; firstly, a work piece is clamped; the surface of an end area of a spline section which is formed on the work piece is heated; an extrusion rolling forming mould extrudes, rolls and forms a section to be heated; the section to be heated enters a forming area of a medium-frequency and high-frequency sensing heater to be continuously heated under axial feeding motion; the extrusion rolling mould completes the extrusion rolling formation to splines on the work piece; the medium-frequency and high-frequency sensing heater is arranged between the extrusion rolling forming mould and a work piece clamping position; the medium-frequency and high-frequency sensing heater only heats the local area of a surface to have plastic deformation in the forming area of a part to have extrusion rolling deformation; and the method for axially feeding, extruding, rolling and forming the spline shaft by medium-frequency and high-frequency sensing heating has the advantages of small spline forming force, little heat loss, energy saving, capability of processing spline parts with large material deformation resistance, capability of processing slender shafts and large modulus, high formation precision and surface quality, high production efficiency, wide processing scope and the like.

A controlled thermal coefficient product manufacturing system and method is disclosed. The disclosed product relates to the manufacture of metallic material product (MMP) having a thermal expansion coefficient (TEC) in a predetermined range. The disclosed system and method provides for a first material deformation (FMD) of the MMP that comprises at least some of a first material phase (FMP) wherein the FMP comprises martensite randomly oriented and a first thermal expansion coefficient (FTC). In response to the FMD at least some of the FMP is oriented in at least one predetermined orientation. Subsequent to deformation, the MMP comprises a second thermal expansion coefficient (STC) that is within a predetermined range and wherein the thermal expansion of the MMP is in at least one predetermined direction. The MMP may be comprised of a second material phase (SMP) that may or may not transform to the FMP in response to the FMD.

The invention provides a system and a method for thermoforming object. A system 10 for thermoforming an object 12 is provided. The system 10 includes a mold 14 and a pressure-box 16. The mold 14 has asurface 32 that defines a shape of the object 12 and includes two or more portions 40, 42, 44, 46, 48, 50 of differing porosities. The pressure-box 16 is operative to generate a pressure differentialacross the surface 32. The two or more portions 40, 42, 44, 46, 48, 50 apply the pressure differential at different loads, based at least in part on the differing porosities, to a material 30 disposed onto the surface 32 so as to form the object 12 by deforming the material 30 into the shape.