Metal Stamping OEM
40 years of manufacturing and exporting experience, various OEM and ODM services from parts to finished products, your trustworthy partner.
1.Customer offer dimension drawings or samples
Offering 2D or 3D drawings with detail it includes material, dimension, surface treatment and quantities demand.
2.Evaluation the possibilities
Evaluating and discussing the production possibilities with customer before mold production.
3.Stamping mold design
Designing the suitable mold according to customer’s demand there are Stage Die, Progressive Die and Compound Di 3 different way.
4.Testing stamping mold
After finishing and completing the mold we will offer sample test for customer to quality confirm before producing officially.
5.Official Production
After receiving sample test and check confirm from customer we will start to run the mass production.
6.After service
We offer a series of after services for customer while they need. The services are including 3rd party testing cooperation, surface finishing, assembling and packing.
Production Technology
Large Piano Hinge
Continuous Hinge/Long Hinge
Progressive Stamping
The advantage of continuous die stamping is to improve the efficiency and output. It owns automatic material feeding; also, it can complete multiple processes on one stamping machine such as punching and shearing shape, punching, embossing, bending, forming, etc.
Deep Drawing Press
Deep drawing stamping or deep drawing forming is the stamping process that transfers the outer edge part of the metal plate blank to the side wall of the product so the sheet or shallow hollow process part becomes a hollow part or a deep hollow part.
Usual Surface Treatment Varieties
(一)Electrochemical method. This method is characterized by the use of electrode reactions to form a plating layer on the surface of fabrication.
(1) Electroplating is the process of using electrolysis to form a uniform, dense, and well-bonded metal or alloy deposition layer on the surface of a workpiece; when a workpiece with a conductive surface is in contact with an electrolyte solution and acts as a cathode, under the action of an external current, the process of forming a plating layer that is firmly bonded to the base is called electroplating. Such as copper, nickel, chromium, zinc, phosphorus alloy, etc.
(2) Anodic oxidation. When the workpiece with a conductive surface is dissolved in contact with the electrolyte and used as an anode, under the action of an external current, the process of forming an oxide film layer on the surface of the workpiece with a firm matrix structure is called limited anodic oxidation. Such as anodizing of aluminum and aluminum alloy.
(3) Electroforming is the process of manufacturing or replicating metal products (which can separate the mold and metal deposits) by depositing metal on the mold by electrolysis. This treatment method is used when we require the final parts to have special surface effects such as clear and obvious separation lines of polishing and etching or special sharp angles. Generally, copper is used to make the shape of a part, and then it is electroplated. The method deposits the alloy on its surface, usually with a deposition thickness of tens of millimeters, and then cuts the cavity, inserts them into the cavity of the mold, and injects the plastic part. There will be special effects on the boundaries to meet the needs of the design. Usually we see a lot of plastic parts with clear boundaries after electroplating with high gloss and etched plating effects. Those with high quality requirements usually use this method for design. If the key board with sharp edges and corners is manufactured using electroforming technology, it will achieve a good appearance effect.
(二)Chemical method. The characteristic of this method is to use the interaction of chemical substances to form a plating layer on the surface of the workpiece without the passage of eternal current.
(1) Electroless plating autoclastic plating. When the surface of the workpiece with a certain catalytic effect is in contact with the electrolyte solution, the relevant substances are deposited on the surface of the workpiece by the reduction of chemical substances under the condition of no external current passing through and form a solid plating with the substrate. The process of coating is called electro less plating. Such as electroless nickel plating, electroless copper plating, etc.; on the surface of the activated substrate, the metal ions in the plating solution are catalytically reduced to form a metal coating.
(2) Chemical conversion coating treatment. When the metal part is in contact with the electrolyte solution, in the absence of external current, the interaction between the chemical substance in the electrolyte solution and the surface of the part is used to form a solid bond with the matrix on the surface. The process of plating the layer is called chemical conversion treatment. Such as surface chromate conversion treatment of aluminum, chromate passivation of zinc, phosphating of steel, etc.
(三)Thermal processing method. This method is characterized by the use of material melting or thermal diffusion under high temperature conditions t form a coating layer on the surface of the workpiece. Its main process is as follows:
(1) Hot-dip plating. The process of immersing metal parts in molten metal to form a metal coating layer on the surface that is firmly bonded to the substrate is called hot-dip plating, such as hot-dip tin.
(2) Thermal spraying. The process of atomizing molten metal and spraying it on the surface of the workpiece to form a metal coating firmly bonded to the substrate is called thermal spraying, such as thermal spraying zinc.
(3) Hot stamping. The process of covering various metal foils on the surface of the workpiece under heating and pressure is called hot stamping, such as hot stamping aluminum foil.
(4) Chemical heat treatment. The process of contacting the workpiece with chemical substances and making relevant elements enter the surface layer of the workpiece at high temperature is called chemical heat treatment, such as carburizing, nitriding, etc.
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