Aluminum is a silver-white light metal with good ductility. The aluminum is often made into the shape of the bar, flake, foil, powder, ribbon and filamentous. An oxide film can be formed in moist air to prevent further metal corrosion. The aluminum and aluminum foils, if heated in the air, will be burnt fiercely and make a dazzling white flame. It is easy to dissolve in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solution, which is difficult to dissolve in water. The relative density is 2.70. The melting point is 660 degrees centigrade. The boiling point is 2327 degrees centigrade. The content of aluminum in the earth's crust is second only to oxygen and silicon, the third largest in the earth's crust, and is the most abundant metal element in the crust. The development of the three important industries of aviation, architecture and automobile requires that the material properties have the unique properties of aluminum and its alloys, which is greatly beneficial to the production and application of the new metal aluminum and widely used.

Different types of CNC machine tools have different uses. Before selecting CNC machine tools, we should know something about their types, specifications, performance, characteristics, uses and the scope of application, so that we can choose the most suitable CNC machine tools for processing parts. According to the characteristics of numerical control processing and much application and practice at home and abroad, the CNC machine tools are usually the most suitable for machining parts with the following characteristics.

Dongguan Yucheng hardware products co., LTD is a modern precision manufacturing enterprise integrating high precision CNC processing, assembling, sales, and service. The company has more than ten years of precision hardware parts processing experience, the company is committed to CNC precision machining. The company mainly provides medical parts processing, communications cavity machining, photoelectric parts processing, auto parts, CNC precision machining, CNC machining, complex parts CNC processing, non-standard parts CNC processing, customized CNC machining, etc.

Find a professional production CNC lathe manufacturers, to recommend Dongguan Yu Cheng Product Co., Ltd. More than a decade of experience in metal processing, perfect service, advanced processing equipment, standardized manufacturing processes, the company aims: quality first, customer first, reputation first. Dongguan Tongli Hardware Products Factory was established on December 14, 1995, has been the fifth anniversary, wholly-owned enterprises tend metal manufacturing industry, factory located in Dongguan City, Guangdong Province, Tangxia Po Tou Heart Lake Village. Aspects of the production equipment at home and abroad, I have the most advanced line of CNC lathes, high- precision automatic lathes, presses, grinding, drilling, thread rolling machine, despair rolling machine, tapping machine, milling machines and other equipment. Testing equipment using vernier , micrometer, dental regulations , projectors, comparison instruments. 

Brass is an alloy composed of copper and zinc. If only composed by the copper and zinc , it is called ordinary brass. If composed of two or more elements, it's an alloy known as the special brass such as the copper alloy mixed with lead, tin, manganese, nickel, lead, iron and silicon. Brass has a strong wear resistance. Special brass, also known as the special-kind brass, is high in strength, hardness, chemical resistance. Its mechanical cutting properties are also relatively prominent.

Fasteners usually include the following 12 parts.

Bolts: a type of fasteners consisting of the head and the screw (the cylinder with the outer thread), which should be combined with nuts to tighten the connection of two parts with holes. This form of connection is called a bolt connection. If the nut is rotated from the bolt, there is a way to separate the two parts, so the bolt connection is a detachable connection.

Non-standard fasteners refer to fasteners that do not need to be corresponding to the standard without strict standard specifications, which can be freely controlled and matched. They are usually customized according to the customer's specific requirements, and then made by the fastener manufacturers based on the data and information. The manufacturing cost of ordinary non-standard fasteners is higher than that of standard fasteners. Non-standard fasteners are diverse, thus they are difficult to be categorized properly.