AMS4911 Titanium Plate

AMS4911 alloy is the most widely used titanium alloy in the world. It has a + type two-phase structure at room temperature, so it is named + type titanium alloy. It has good comprehensive mechanical properties, can be strengthened by heat treatment, has good forging, stamping, and welding properties, and has general cutting performance: high room temperature strength, good heat resistance below 150-5°C, and good low temperature Toughness and good resistance to seawater stress corrosion and hot salt stress corrosion resistance, AMS4911 titanium plate also has the characteristics of low density, high specific strength, low elastic transverse volume, small thermal conductivity, non-magnetic, non-toxic and other characteristics.

1. Due to the small elastic modulus of titanium alloy, the clamping deformation and stress deformation of the workpiece will be large during processing, which will reduce the processing accuracy of the workpiece; the clamping force should not be too large when installing the workpiece, and auxiliary supports can be added if necessary.

2. If hydrogen-containing cutting fluid is used, it will decompose and release hydrogen at high temperature during the cutting process, which will be absorbed by titanium and cause hydrogen embrittlement; it may also cause high-temperature stress corrosion cracking of titanium alloys. .

3. Chloride in cutting fluid may decompose or volatilize toxic gas when used. Safety protection measures should be taken during use, otherwise it should not be used; after cutting, the parts should be thoroughly cleaned with a chlorine-free cleaning agent in time to remove chlorine residues .

4. It is forbidden to use tools and fixtures made of lead or zinc-based alloys to contact titanium alloys, and it is also forbidden to use copper, tin, cadmium and their alloys.

5. All tools, fixtures or other devices in contact with titanium alloy must be cleaned; after cleaning titanium alloy parts, prevent grease or fingerprint pollution, otherwise it may cause salt (sodium chloride) stress corrosion in the future.

6. Under normal circumstances, there is no danger of fire when cutting titanium alloys. Only during micro-cutting, the small chips that are cut off can ignite and burn. In order to avoid fire, in addition to pouring a large amount of cutting fluid, it is also necessary to prevent chips from accumulating on the machine tool, replace the tool immediately after it is blunt, or reduce the cutting speed and increase the feed rate to increase the chip thickness.

It is widely used in stamping parts, welding parts, die forgings and various parts of bending processing under 400C. This alloy can also be used as a low temperature structural material, long-term working parts below 400C, structural forgings, various containers, pumps, low temperature components, ship pressure shells, tank tracks, aeroengine compressor blades, rocket engines Shells, liquid hydrogen fuel tank components for rockets and missiles, heaters for oil refining and seawater desalination, and environmental pollution control devices, etc.

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