Bearbejdningsteknologi af titanlegeringsdele

Drejning af titanlegeringsdele
Drejede titaniumlegeringsdeleprodukter kan nemt opnå bedre overfladeruhed, arbejdshærdning er ikke alvorlig, men skæretemperaturen er høj, og værktøjet slides hurtigt. Som svar på disse egenskaber, Følgende foranstaltninger er hovedsageligt vedtaget med hensyn til værktøjer og skæreparametre:
Drejeværktøjsmaterialer: YG6, YG8, YG10HT er valgt i henhold til de eksisterende forhold på fabrikken.
Geometriske parametre for drejeværktøjer: passende for- og bagvinkler på værktøjet, og værktøjsspids afrunding.

Lower cutting speed, moderate feed rate, deeper cutting depth, and sufficient cooling. When turning the outer circle, the tool tip cannot be higher than the center of the workpiece, otherwise the tool will break. When precision turning and turning thin-walled titanium parts, the cutting tool's entering angle should be large, generelt 75-90 grader.

Milling of titanium alloy parts
Milling of titanium alloy parts is more difficult than turning. Because milling is an intermittent cutting, and titanium chips are easy to bond with the cutting edge. When the sticky chip cuts into the workpiece again, the sticky chip hits a small piece of the tool to form a chipping edge, which greatly reduces the durability of the tool.

Titanium alloy milling method: generally use down milling.
Tool for milling titanium alloy: high-speed steel M42.

Generelt, down milling is not used for processing titanium alloys. Due to the influence of the open space of the screw and nut of the machine tool, the milling cutter acts on the workpiece during down milling. The component force in the feed direction of the part is the same as the feed direction of the tool, which is easy to cause the work table to move freely and form a broken tool.

Titanium alloy parts tapping
For the tapping of titanium alloy parts processing products, due to the small chips, it is easy to bond with the blade and the workpiece, resulting in a large surface roughness and large torque. When tapping taps and improper selection of improper operation can easily form a work-hardened, low processing power and when there is the phenomenon of broken taps.
It is necessary to prefer a threaded tapping tap with a proper thread, and the number of teeth should be less than the standard tap, generelt 2 til 3 tænder. The cutting taper angle should be large, and the taper part is generally 3 til 4 thread lengths. In order to facilitate chip removal, a negative inclination angle can also be ground on the cutting cone. Try to choose short taps to add rigidity to the taps. The inverted taper part of the tap should be appropriately enlarged compared to the specification to reduce the conflict between the tap and the workpiece.