Industry News

Mold making

2019-01-24
Sebopeho sa sebopeho le khetho ea mefuta ea hlobo e lokela ho nahana ka lintho tse kang ho tsitsisa, ho tataisa, ho laola mekhoa, mokhoa oa ho beha boemo le boholo ba lekhalo. Lintho tse sebelisoang ka hlobo li lokela ho nkeloa sebaka habonolo. Bakeng sa liforomo tsa polasetiki le li-mold-casting hlobo, ho boetse ho hlokahala hore ho nahane ka mokhoa o utloahalang oa ho lahla, polasetiki e entsoeng ka ho qhibiliha kapa phallo ea tšepe, le boemo le mokhoa oa ho kena ka hare. E le ho eketsa tlhahiso le ho fokotsa ho lahleheloa ke limathi, mochine o mongata o ka sebelisoa ka nako e le 'ngoe o tlatsa lihlopha tse ngata tse tšoanang kapa tse fapaneng ka hlobo e le' ngoe. Mefuta e mengata e sebetsang hantle, e hlakileng, e phahameng-bophelo e lokela ho sebelisoa ka tlhahiso ea boima.

Lefu le tsitsitseng le lokela ho nka mefuta e mengata e tsoelang pele, le ho kenngoa ha carbide ho ka ntlafatsa bophelo. Ka tlhahiso e nyenyane ea lihlahisoa le tlhahiso e ncha ea sehlahisoa sa sehlahisoa, liforomo tse bonolo tse nang le sebopeho se bonolo, ho etsa lintho ka potlako le litšenyehelo tse theko e tlaase li lokela ho sebelisoa, tse kang ho kopantsa die, sheet die, urethane rubber die, melting low alloy die, zinc alloy die, superplastic alloy die, le tse ling. Likhoele li se li qalile ho sebelisa moqapi oa lik'homphieutha (CAD) ho ntlafatsa hlobo ho sebelisa tsamaiso ea khomphutha. Ena ke tataiso ea tsoelo-pele ea hlobo.

Mold
Mold
According to the structural characteristics, the mold manufacturing is divided into a flat punching die and a cavity die having a space. The punching die utilizes the precise fit of the punch and the die, and some even have no clearance fit. Other forging dies such as cold extrusion dies, die casting dies, powder metallurgy dies, plastic dies, rubber dies, etc. are all cavity molds for forming three-dimensional shaped workpieces. The cavity mold has dimensional requirements in three directions of length, width and height, and the shape is complicated and manufacturing is difficult. Mold production is generally one-piece, small batch production, manufacturing requirements are strict and precise, and more sophisticated processing equipment and measuring devices are used.

The plane blanking die can be formed by electric spark machining, and the precision can be further improved by forming grinding and coordinate grinding. Forming grinding can be carried out using an optical projection curve grinder, or a surface grinder with a microfilming and sanding mechanism, or a precision surface grinding machine with a special shaped grinding tool. Coordinate grinding machines can be used for precise positioning of the mold to ensure precise aperture and hole spacing. It is also possible to grind any curved shape of the punch and the die with a computer numerically controlled (CNC) continuous track coordinate grinding machine. The cavity mold is mostly processed by copy milling, EDM and electrolytic machining. The combination of copy milling and numerical control and the addition of a three-way translational head device in EDM can improve the machining quality of the cavity. Increasing gas-filled electrolysis in electrolytic processing can increase production efficiency.