Ti­ta­nium and ti­ta­nium al­loys pow­der com­paction forg­ing/ex­tru­sion

DEMM Engineering & Manufacturing - - NEWS -

New Zealand’s Ti­ta­nium industry is grow­ing, with world-class Ti­ta­nium Al­loy pow­ders and fin­ished prod­ucts now be­ing made right here in NZ - and it’s more ac­ces­si­ble than you may think.

Ti­ta­nium (Ti) is the fu­ture of many ap­pli­ca­tions cur­rently filled by other met­als. Its ex­cel­lent com­bi­na­tion of prop­er­ties makes it ideal for mis­sion-crit­i­cal ap­pli­ca­tions in chal­leng­ing en­vi­ron­ments - with a dis­tinct weight sav­ing ad­van­tage.

Pow­der-met­al­lurgy tech­nolo­gies al­low for specif­i­cally de­signed al­loys to meet your de­mand­ing re­quire­ments. By har­ness­ing pow­der com­paction’s ef­fi­cient ma­te­rial uti­liza­tion and Ti­ta­nium’s spe­cific prop­er­ties your prod­ucts can be made with less ma­te­rial and much bet­ter re­sults.

The pow­ders can be used in the wide va­ri­ety of ap­pli­ca­tions that make up the Pow­der Met­al­lurgy fields, from spe­cial­ist Coat­ings right through Ad­di­tive Manufacturing (3D-print­ing) to solid Forged high-strength al­loy prod­ucts.

Ti­ta­nium Tech­nolo­gies NZ (TiTENZ) is keen to hear from any po­ten­tial ap­pli­ca­tions for Ti­ta­nium al­loy prod­ucts, with a strong direc­tive for New Zealand to ben­e­fit from value-added manufacturing here in NZ. Don’t just think pow­der! Re­cent scaled-up tri­als at S.A.F.E’s forg­ing plant in Drury have proven a process of ex­tru­sion from pow­der to solid 32mm di­am­e­ter bar stock, and from pow­der into solid forged parts.

Th­ese two meth­ods not only min­imise waste of raw ma­te­rial, but also al­low smaller batches of spe­cial al­loys un­avail­able through nor­mal sources to be cre­ated by the pow­der blend­ing process.

In the Forg­ing process just the right amount of Ti­ta­nium pow­der of the de­sired al­loy is com­pressed into a suit­able near­net shape un­der very high pres­sure, then hot-forged in nor­mal forg­ing tool­ing to pro­duce a full-den­sity, full-strength part with the bare min­i­mum of wasted ma­te­rial.

In the Ex­tru­sion process the com­pacted pow­der is ho­tex­truded to a de­sired shape and size. The ex­truded bar can then be used di­rectly, or fur­ther forged into prod­ucts such as spe­cialised bolts, im­plants, sport­ing goods, marine and struc­tural ar­chi­tec­ture, etc.

Th­ese tech­nolo­gies are bring­ing the re­al­ity of Ti­ta­nium prod­ucts within reach of many ap­pli­ca­tions, as the near­net-shape form­ing process means large sav­ings in raw ma­te­rial.

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