4 Common Metal Surface treatments to Date

The Concept of Metal Surface Treatment It refers to the process of changing the surface condition and properties of parts and optimizing its combination with matrix materials to meet the predetermined performance requirements by using the edge new technologies of modern physical, chemical, metallurgy and heat treatment disciplines. Classification of Metal Surface Treatment Technologies 1. Surface modification The surface chemical composition of the material is not affected by changing the surface microstructure and stress state of the material. 2. Surface Alloying Technology Adding new materials into the matrix to form alloying layer. 3. Surface film technology Chemical reaction between additive … Read more

What is Cast Iron?

For most guys working in the industry of metal machining, Cast iron must be a kind of familiar material. What is cast iron? First of all, it’s a sort of ferro-carbon alloy that contains more than 2.11% of carbon and small amounts of Si, Mn, S, and P. The mechanical properties of cast iron are lower than that of cast steel. But it has excellent castability, shock absorption, wear resistance and cutting machinability. The production process is simple and the cost is low. It is one of the most commonly used metal materials in engineering. Classification of Cast Iron The … Read more

8 Common Microstructures of Metal and Alloy

Modern materials can be divided into four categories: metals, polymers, ceramics and composite materials. Despite the rapid development of macromolecule materials, steel is still the most widely used and most important material in the current engineering technology. What factors determine the dominant position of steel materials? Now let’s introduce it in detail. Iron and steel are extracted from iron ore, rich in sources and low in price. Iron and steel, also known as iron-carbon alloy, is an alloy composed of iron (Fe) and carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) and other small elements (Cr, V, etc.). … Read more

What is Sintering and Hot pressing?

Sintering is the heating of a powder to a certain temperature for a certain period of time and then cooling the material to obtain a product of the desired properties. This whole process of the special heat treatment is called sintering. Sintering enables porous powder compacts to become the product of a certain texture and properties. Although the attributes of the product are related to many factors prior to sintering, in many cases the sintering process have significant or even dominating influence on the organization and properties of the final product. According to the classification principle of powder metallurgy on … Read more

Application of powder metallurgy in automobiles

We know that many of the auto parts are gear constructions, and these gears are made by powder metallurgy. With the development of China’s auto industry and the improvement of energy saving and emission reduction requirements, the application of powder metallurgy technology in the automotive industry. More and more, more and more metal parts will be produced by powder metallurgy. At present, the average powder metallurgy product usage per car in Europe is 14kg, Japan is 9kg, the United States has reached 19.5kg or more, and it is expected to reach 22kg in the next few years. At present, the … Read more

What is EDM

Harsh processing of tungsten carbide material can be completed by tools like diamond grinding wheels. Besides that, many modern processing technologies are invented and developed currently for purpose of obtaining products of complicated shape in less processing time, such as EDM, supersonic processing, electrolytic processing, electron beam processing and lazer processing. EDM is focused on in this article, known as wire electrical discharge machining to cutting off spare parts with two electrodes made of metallic carbide or metal in a designed circuit that leads the machining path. It’s firstly noticed and observed by Joseph Preistly in 1770. Then In the … Read more

4 Best Methods of How to Cut tungsten carbide rod Properly?

There are helpful ideas about how to cut tungsten carbide rod. As we all known, Tungsten carbide is usually referred to as a sort of a Hard material due to its extremely high hardness in relation to other materials. Typically a Tungsten Carbide can have a hardness value of 1600 HV, whereas mild steel would be only in the region of 160 HV. You wanna try to score or cut off tungsten carbide rods effectively. The following 4 ways may work out, which are abrasion wheel grinding, machining by superhard material, electrolytic machining(ECM), and electric discharge machining(EDM). Cut carbide blank … Read more