Factors Affecting The Metamorphic Layer Of The Middle Wire Cutting 1. Metallographic structure and elemental composition of the workpiece material Due to the discharge of the electric spark, the metallographic structure of the surface layer of the workpiece material changes significantly, forming a discontinuous, uneven thickness of the metamorphic layer. It is related to the…
What Is Vacuum Casting? Vacuum casting is a process that uses a ventilated mold. The molten metal flows into the mold by air pressure and then removes the air to form a vacuum. This casting method is mainly used for small parts or jewelry with intricate details. It is a physical modeling method. The vacuum…
What Kinds Of Vacuum Casting Are There? Vacuum casting can be roughly divided into three types: vacuum suction casting, vacuum low pressure casting, and vacuum differential pressure casting. 1.Vacuum suction casting Vacuum suction molding refers to placing the mold in a closed container and extracting the air inside the mold to cause a certain negative…
Selection Principle Of Die-Casting Mold Materials In all the molds, the order of the amount of the mold is a plastic mold, a cold stamping mold, a casting mold, a forging mold, and the like. However, due to incorrect material selection, improper process or improper operation, low temperature strength and toughness, poor high temperature wear…
Mold Overall Toughening Treatment The die steel is widely used. The conventional heat treatment process is quenched at 1050 °C ~ 1100 °C, tempered at 550 °C ~ 620 °C, and the hardness is generally 45 HRC ~ 50 HRC. The early fracture phenomenon often occurs in use, and the die life is often low.…
Mold Surface Strengthening Treatment In recent years, with the development of industry, the requirements for product quality have become increasingly strict, and the requirements for molds have become higher and higher. In particular, precision die-casting molds require a high degree of mechanical properties, and require a small amount of deformation, which is basically no longer…
What Is The Middle Wire Cutting Technology? The middle wire cutting process is a processing method that utilizes the thermal effect of the instantaneous discharge energy to melt and evaporate the workpiece material to meet the dimensional requirements. Since the wire-cut working fluid mostly uses a dielectric liquid, it is accompanied by a certain electrolysis…
What Are The Square Tube Forming Methods? The way in which the tube is formed is called bending, and the way in which the square tube is formed is called bending. There are two basic methods of bending forming: solid bending and empty bending. The solid bend, as the name implies, is the compaction of…
Working Conditions Of Die Casting Mold The die-casting mold is the basic tool for the completion of the pressure casting production. The high-pressure 1000°C molten metal is die-cast at a high pressure of 150 MPa to 500 MPa, and the processed objects include lead, zinc, aluminum, magnesium, copper and other alloys. Due to the different…
Die Casting Mold Performance Requirements Pressure casting can cast parts with complex shapes, high precision, small surface roughness and good mechanical properties. Therefore, the die casting mold should have the following performance requirements: (1) Large high temperature strength and toughness The die-casting mold is subjected to high temperature, high pressure and thermal stress when molten…