Foriem, volfrám

Volfrámový drôt, volfrámu tyč, volfrámu bar, volfrámu strip, volfrámu fólia, volfrámu list, volfrámu tanier, volfrámu prášok, volfrámu hadičky, volfrámu prírezy, volfrámu polotovarov a vlastné hotové diely volfrámu.

Obrábanie volfrámu

Tungsten can be very difficult to fabricate because of its high hardness and low ductility. Tungsten is a strong, pevný, crack-citlivé kov, ktorý je zvyčajne krehký pri izbovej teplote. It requires special handling and skill beyond that necessary for most metals and alloys. It is important to remember when working with Tungsten is that it must be cut or formed at temperatures well above its transition temperature. Failure to do this may result in cracking or lamination. Care should be taken to insure that the metal remains at this temperature throughout the entire forming process. The use of cold tooling which rapidly chills the metal can be as harmful as not preheating the material. The best method for machining that involves metal removal is E.D.M. The following conventional methods can also be used with great care: Brúsenie, tvárnenie, spájanie, frézovanie, nitovanie, spinning, razenie, a otáčanie.

Sústruženie
NástrojeCarbide H(2)
Clearance angle
Rake späť27°
Strane Rake
Cutting Speed132 ft per minute
Nose Angle90°
Nos polomer
Brúsenie (Use aluminum oxide or silicon carbide wheels with medium hardness.)
Wheel Typesilicon carbide; hardness j to l ; gram size 100-120
Speed12 ft per second
Frézovanie (When milling Tungsten, the following is recommended)
Cutting speed73 stopy za minútu
clearance angle
side rake10°
Tvárnenie (When spinning, bending or stamping note the following)
NástrojáreňCarbide
Temperature1000° – 1500° F

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