The Effect Of The Hardness And Life Of The Cold Work Die The main failure types of cold working molds are overload failure and wear failure, accounting for 80%-90% of the total failure. Cold heading die is mainly caused by cracking or abnormal wear (partial shedding), cold extrusion die is mainly brittle or wear failure,…
DetailsAnalysis Of Materials And Performance Requirements Of Cold Work Die Mold is an important basic process equipment in manufacturing technology. The quality of mold products is not only related to the quality and performance of the products, but also directly affects the manufacturing cost and efficiency. In the mold products of the automobile, home appliance,…
DetailsInjection Molding Can Improve The Appearance Of Injection Molded Parts Cold/hot mold injection molding technology can greatly improve the aesthetics of injection molded parts. This process contributes to the improvement of the appearance of semi-crystalline and amorphous resin articles, particularly for amorphous resins. In the injection phase, when the surface temperature of the mold exceeds…
DetailsTypes Of Precision Forging Forming Technology Precision forging forming technology, its advantages are obvious, low cost, high efficiency, energy saving and environmental protection, high precision. This type of forming process is divided into many forms. 1. According to the forming speed: high-speed precision forging, general precision forging, slow precision forging, etc.; 2. Divided into metal…
DetailsClassification Of Forging Process By Forging Temperature According to the forming mechanism, forging can be divided into die forging, free forging, rolling ring, and special forging. 1.Die forging Die forging is divided into open die forging and closed die forging. The metal blank is pressed and deformed in a forging die having a certain shape…
DetailsClassification Of Forging-Type Processes According to the forming mechanism, forging can be divided into die forging, free forging, rolling ring, and special forging. 1.Die forging Die forging is divided into open die forging and closed die forging. The metal blank is pressed and deformed in a forging die having a certain shape to obtain a…
DetailsStress State During The Forming Process After the strip is processed into a spiral tube blank, the stress generated by the tube wall is mainly affected by the forming force during the strip forming process. According to the plastic deformation theory, when the relative bending radius of the strip is equal to 100, the plastic…
DetailsWhat Is Semi-Solid Technology? Semi-solid technology refers to the use of heating materials to a semi-solid state to form a semi-solid structure in which the solid phase and the liquid phase are uniformly mixed. The solid phase rate is controlled by adjusting the heating temperature and time, and processing is performed in this state. Methods.…
DetailsSemi-Solid Deformation Theory 1. Dendritic stirring fracture theory The core of the semi-solid billet is to generate non-dendritic equiaxed crystals, and the material is stirred in a semi-solid state. During the stirring process, the stirring force and speed are increased, and the shear force of the crystal grains is The impact from the liquid will…
DetailsMechanical Stirring Method And Electromagnetic Stirring Method 1.Mechanical stirring method The mechanical stirring method is the oldest and simple stirring method. It is different from the electromagnetic stirring method in that the stirring function is realized by the rotation of the blade or the stirring rod. The principle of forming the non-dendritic crystal is similar…
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