Titanium CNC Machining Parts: Surface Treatment and Application

The density of titanium is only half that of steel, but it is as strong as steel. A long time ago, titanium was still a scarce material. Nowadays, titanium can be found in all kinds of titanium CNC machined parts from high-tech aviation industry to golf clubs. In order to facilitate everyone to understand the characteristics of titanium and which industries it is used in. How to do surface treatment and cleaning of titanium CNC machined parts? Please follow this article to discuss the application of titanium CNC machining parts.
 

What are the characteristics of titanium CNC machining parts?

Titanium is known for its excellent mechanical properties, corrosion resistance, strength-to-weight ratio, and compatibility with other materials. Compared with other materials, it has the following characteristics;

1. Low density and high hardness

The density of titanium is 4.51g/cm3, which is higher than that of aluminum and magnesium, but lower than that of steel, copper, and nickel, but its specific strength is higher than that of aluminum alloy and high-strength alloy steel.

2. High melting point

The new titanium alloy can be used for a long time at a temperature of 600C or higher.

3. Low modulus of elasticity

The elastic modulus of titanium is 106.4GPa at room temperature, which is 57% of that of steel, and it is close to the elastic modulus of human bones.

4. Inspiratory performance

Titanium is a chemically very active metal, which can react with many elements and compounds at high temperatures. The gettering property of titanium mainly refers to the reaction with carbon, hydrogen, nitrogen, and oxygen at high temperatures.

5. Non-magnetic and non-toxic.

Titanium is a non-magnetic metal and will not be magnetized in a large magnetic field. It is non-toxic and has good compatibility with human tissues and blood, so it is used by the medical industry.

6. Small thermal conductivity

The thermal conductivity of titanium is small, 1/5 of low carbon steel and 1/25 of copper.

What surface treatments are used for titanium CNC machining parts?

According to the titanium needs to use surface treatment, it can be divided into the following

1. Surface repair: As titanium CNC machined parts are prone to scratches during use, surface repair is required at this time. Sandblasting, pickling, chemical polishing and electrolysis are usually used.

2. Prevent wear: Long-term use of titanium CNC machined parts will cause corrosion and reduce durability. In order to further improve the corrosion resistance, wear resistance, fretting resistance, high temperature oxidation resistance of titanium CNC machined parts, surface treatment is required. Common surface treatments include: anodizing, PVD coating, and chemical nickel plating , Electroplating and so on.

Which industries are titanium CNC machined parts used in?

Titanium developed from the 1950s and is an important structural metal. Due to the high-quality performance of titanium CNC machining parts, it is widely used in the aerospace industry, industrial industry, military industry, medical industry, automobile industry, sporting goods industry and other fields.

Aerospace: jet engine parts, fuselage parts, rockets, satellites, missiles and other parts, compressors, fan blades, disks, receivers, guide blades, shafts, landing gear, flaps, spoilers, engine compartments, etc.

Industrial industry: electrolyzer, reactor, distillation tower, concentrator, separator, heat exchanger, pipeline, electrode, etc.

Military industry: such as ship's submarine pressure hull, propeller, water jet, seawater heat exchange system, ship pump (valve and pipe), seawater desalination pipeline, offshore oil drilling pump, valve, pipe fittings, etc.

Medical industry: artificial joints, artificial implants and orthodontics, cardiac pacemakers, cardiovascular stents, surgical instruments, etc.

Automobile industry: automobile exhaust and silencer systems, load-bearing springs, connecting rods and bolts, etc.

Sporting goods industry: golf heads, tennis rackets, badminton rackets, billiard sticks, mountaineering sticks, ski poles, ice skates, etc.

Summarize         

Due to its moderate weight, high structural properties (such as strength, fatigue, toughness, rigidity), corrosion resistance (compared to steel) and maintaining its mechanical properties at high temperatures, titanium CNC machining parts need to be paid attention to when choosing titanium The performance is convenient for CNC machining and manufacturing. In addition, the metal surface treatment methods at this stage can be used for titanium CNC machining parts.