60:1 Aluminium Thin Wall Frame (Major Dream Application Demo)

Demonstrating thin frame manufacturing strategy at its extreme. By maintaining a 5:1 ratio stepping down the frame and crucially never returning to a thin section there is sufficient part stiffness to react the cutting forces and a stable process is achieved.

Measured wall thickness is 0.5mm, to achieve this a 0.4mm thickness is programmed to account for deflection.

• NIKKEN HSK63A-MDSK10-120 • Mitsubishi Alimaster AM2SCD1000A100 • 0.08F/T @12KRPM

Major Dream Damping System Explained: When cutting vibrations are transmitted from the cutting edge to the chuck main body (light grey), radial vibrations are dampened by the internal split taper cone (red). Axial vibrations are dampened by the disc spring that provides pre-loading to the taper cone. Therefore, no vibration is transmitted up into the taper shank of the machine spindle. This prevents and counters any fretting corrosion occurring between the main spindle of the M/C and the taper shank of the tool holder. Vibration free stable cutting is then achieved at the cutting edge.

Competitor ER

NIKKEN 8°

NIKKEN Major-Dream:

§ Internal Dampening. § TiN Bearing Nut. § Precision 8° Collet. § Greater Tightening

Torque. § Compact Construction. § Higher Precision &

Accuracy. § Increased Tool Life.

Dampening Effect – Stable Cutting

Imagecredit:https://www.mmsonline.com/articles/how-to-machine-aircraft-titanium-the-8-to-1-rule-for-finishing-walls-and-ribs