Metal injection molding process and intelligent sensor production

Sensor is the device or equipment that can feel measurement according to certain rules and converted into useful output signal, usually consists of sensitive components and conversion components. These components have small size, using the traditional processing method is time consuming and laborious, production efficiency is low. MIM is a new forming technology can form products at a time, can reduce the production process, greatly improve the work efficiency of products, reduce the production cost of the products, making it especially suitable for production the tiny sensitive components and conversion components of sensor. 

Because of the sensor is the fastest growing segment of the semiconductor industry, but due to global economic growth in the last few year. The influence of the financial crisis, represented by accelerometer and magnetic field sensors two major types of sensors of weak market demand, the unit price goes down. Sensor market suffered in 2013, entered a depressed state.

Learn More: http://www.mdmmetal.com/Companynews/Metal_injection_molding_process_and_intelligent_sensor_produ_179.html

powder metallurgy technology in injection

In the past two years, domestic metal injection molding industry developed rapidly. Around Guangdong coastal and especially eastern China, large and small MIM factories flourish everywhere. Besides mobile phone industry adopted a large number of MIM metal parts. Many other industries or fields are also beginning to import a large number of MIM parts.

It is understood that is quite common using MIM to produce airplane structural parts and car parts. Represented by MIM products of powder metallurgy parts are heavily used in the field of aircraft manufacturing, automobile anufacturing. With the advent of the big era of domestic manufacturing, believe the MIM technology will have more chance to perform.

The application of powder metallurgy technology in injection molding universality is inestimable. Metal injection
molding, more and more new markets, began to try to import the MIM process. Aerospace, automotive, medical, military and all walks of life are beginning to have the MIM process production. China is a manufacturing great power.
While powder metallurgy process, will face a bigger market. The traditional processing technology, will suffer from one of the most severe test.

learn more: http://www.mdmmetal.com/Companynews/The_application_of_powder_metallurgy_technology_in_injection_182.html

Meta injection parts for tool pliers

Metal injection parts for tool pliers

Material: MIM4605;
Weight:  12 g ;
Hardness: 30~50HRC
Tolerance: +-0.05 mm;
Surface treatment: according to ustomer's request.

Shipping terms: FOB Shenzhen, EXW Shenzhen;
Payment terms: 100% TT in advance, Western union;
Packing: Carton, Box or according to request.

Detailed description: Metel injection parts for tool pliers, more similar parts could be custom made.
From MDM Metal Industrial Co.,Ltd.- The MIM parts expert in Shenzhen China.

If you are in need for the similar products, please email me the 2D and 3D drawings with detailed spec. 

MDM Metal Main MIM Products Show

MDM Metal Industrial Co.,Ltd. is located in Shenzhen China, a manufacturer of MIM metal parts that focus on providing customers with high quality products and the best services.
Learn More: http://mdmmetal.blogspot.com/p/what-is-mimmetal-injection-molding.html

MDM Metal Main MIM  Products Show

A brief introduction of 3D printing technology

A brief introduction of 3D printing technology

◆The profile of 3D printing technology

3D printing refers to the physical layer through continuous overlay, step by step increase the materials to generate 3D entity. Different from the traditional removal material processing technology, it is also known as additive manufacturing(AM).

3D printing is an emerging technology that is developing rapidly in the field of manufacturing industry, known as "manufacturing technology of the industrial revolution significance". The main process of the technology is: design the three-dimensional model with computer software, and then through specific molding equipment (commonly known as "3D printer"), with liquid, powder, silk solid materials to "print" the products step by step.

3D printing is the main implementation forms of "additive manufacturing". The concept of "additive manufacturing" is different from traditional manufacturing "removing manufacturing". Traditional CNC manufacturing is generally based on the raw material, using the way such as cutting, grinding, corrosion, melting, remove excess parts to obtain components, then though assembling, welding and other methods combine into the final products. While "Additive Manufacturing" is very different, it doesn't need prototype and mold, can generate any shape objects directly according to the computer graphical data, by the method of adding material. It simplifies the manufacturing process of product, shorten product development cycle, improve efficiency and reduce cost.

As a comprehensive application technology, 3 d printing integrated digital modeling technology, mechanical and electrical control technology, information technology, materials science and chemistry etc. many aspects forefront technologies, has the very high technology content. 3D printer is the core equipment of the 3D printing. It is complex electromechanical integration system that integrate machinery, control and computer technology, mainly composed of high precision mechanical system, CNC system, injection system and forming environment subsystem composition and so on. In addition, the new printing materials, printing technology, design and control software is also an important part of 3D printing system.

◆The key technology that 3D printing requests

3D printing need to rely on advanced technology in the field of multiple disciplines, including at least the following aspects:

1.       Information technology: must have the advanced design software and digital tools, cad staff to produce products of three-dimensional digital model, and according to the model of automatic analysis of printing process, automatic control of printing equipment.

2.       Precision machinery: 3D printing processing way is " stack of each layer ". To produce high precision products, must have high requirements on the accuracy of printing devices and stability.

3.       Materials science: used for 3D printing raw materials is special, must be able to liquify, powdering, silk, can combine again after printing, and have qualified physical and chemical properties.

 ◆The application fields of 3D printing

1. Industrial manufacturing: product conceptual design, prototyping, product reviews, functional verification; Moulds made by prototype mold or direct printing, printing products directly. 3D printing of small unmanned aircraft, small cars concepts such as the products are available. 3D print model of home appliances, is also used in enterprise's publicity and marketing campaigns.

2. Cultural creativity and digital entertainment: complex shape and structure, materials, special artistic expression vector. Science fiction film Avatar using 3D printing shaped part and props, 3D printing violin reached the level of handicraft.

3. Aerospace, national defense, complex shape, size of subtle, direct manufacturing components with special performance.

4. Biomedical: artificial bones, teeth, hearing AIDS, artificial limbs, etc

5. Consumer goods, jewelry, clothing, footwear, toys, creative DIY works of design and manufacturing

6. Construction: building model pneumatic test and result display, architectural engineering and construction (AEC) simulation.

7. Education: scientific hypothesis of model validation, to different subjects experiment, teaching. Some high schools in North America, the average college and military colleges, 3D printers have been using for teaching and scientific research.

MIM technology in China-MDM : Solid phase sinteringSolid phase sintering accordi...

MIM technology in China-MDM : Solid phase sinteringSolid phase sintering accordi...: Solid phase sintering Solid phase sintering according to its components can be divided into single-component solid phase sintering and m...

MDM Metal Industrial Co.,Ltd. the experts of MIM parts.  Has a workshop over 2000 square meters in Shajing Twon, Shenzhen city. We have a complete production line for MIM projects, which can assure the products quality, delivery time and after sales
service. 


Injection machines: 
All the injection machines are fully-automatic.
Which will save us much workforce and offer customers good price. 

http://www.mdmmetal.com/equipments/98.html 

Solid phase sintering

Solid phase sintering

Solid phase sintering according to its components can be divided into single-component solid phase sintering and multicomponent system solid phase sintering. Single-component solid phase sintering is a pure metal compound of fixed composition or loose-fitted powder of uniform solid solution or compact sintered below the temperature  of melting point (generally 2/3 to 4/5 of the absolute melting temperature). Single-component solid phase sintering process in addition to the bonding between powder particles, densification and microstructure of pure metal, there is no dissulotion between organization, nor the emergence of a new component or new phase.

Sintering process

Single-component solid phase sintering process roughly divided into three stages:

(1)    Low temperature phase. 

Mainly occur metal bounce, gas adsorption and evaporation of moisture, decomposition and ruled out of compact formagen. Due to elastic stress is eliminated when rebonding, the contact area between powder particles decrease relatively, plus volatiles, makes sintered body contraction is not obvious, even have slight expansion. The density of sintered body in this stage remain unchanged.

(2)Medium temperature phase. 

Began recrystallization, powder particle surface oxide was completely restore, grain contact interface formed sintering neck, sinter strength improved obviously, and the density increases slowly.

(3) High temperature phase. This is the main stage for single-component solid sintering. Diffusion and flow process thoroughly and close to completion, plenty of blind holes of sintered body gradually shrinked, number of pore decreases, density of sintered body obviously increase. All performance keep stable after a certain period of heat preservation. The major factors affect single-component solid phase sintering is the nature of sintered components, powder characteristics(such as particle size, shape, surface state, etc.) and sintering process conditions (such as sintering temperature, time, atmosphere, etc.). Increasing the contact area between the powder particles or improve the contact state, change material activation energy of the migration process, Increases the number of atoms of the migration process and change the ways or methods of material migration, all can improve single-component solid phase sintering process.

Multicomponent

Multicomponent system solid phase sintering is two or more components powder system sintered below the melting temperature of the low melted component. Multicomponent system solid phase sintering in addition to the phenomena that occurred to the single-component solid phase sintering, also occur some other phenomena due to the interaction between components. For the multicomponent system that component is not mutual dissolve, the sintering behavior is mainly determined by the powder which takes more ratio. Such as mixed powder of copper and graphite, the sintering is mainly between copper powder, graphite powder block the contact between copper powder and affect the shrinkage, has a certain influence to the strength and toughness of sintered body. To multiple solid phase sintering that can form solid solution or combination, except sintering between same components, mutual dissolution or chemical reaction happen between different components. Sintered body due to the different of component system, some will shrink and some expand.

Strange diffusion has decisive effect in the formation of metal and alloy homogenization, all factors conducive to strange diffusion, can promote the multicomponent system solid phase sintering process. Such as use a finer powder, improve powder mixing uniformity, use the partial alloying powder, and improve the sintering temperature, eliminate gas adsorption and oxidation film on the surface of the powder particles, etc. In deciding on sinter performance, multicomponent system of solid phase sintering alloy homogenization is more important than the densification of sintered body. Multicomponent solid phase system after sintering can turn into single-phase organization of alloy, or polyphase structure of alloy, it can be judged by sintering system alloy state diagram.

Like other metal processing as well as metal photo etching.