All Case Studies

Case Study

Inner Shell Slot and Shoulder Milling

SUCCESS STORY
The component here in discussion is used in the liquid propellant engines in rockets for launching satellites. Hence the criticality to maintain all the quality parameters was paramount. With huge savings in cycle time, got reduced by 67% compared to previous cycle time. Which gave around 225 hours of machine hour savings with this very premium range of machine.
CASE STUDY
Industry Aerospace/ Space Industry
Application Channel milling
Part Inner Shell – Liquid Fuel Channel
Machine HMC – DMG
Challenge Very high cycle time & to maintain the profile of the component.
Solution Use SpinJet GJET & HPC for high RPM & better run-out.
RESULTS WITH GJet/ SPEED Jet and HPC Jet/ POWER Jet
Time Savings per part (minutes) 13,500 (225h)
Cost Savings Per Part ($40/hour) $9,000
Jet Spindle GJET V4
HPC Jet/ POWER Jet and GJet/ SPEED Jet
OPERATING DATA DESCRIPTION OF OPERATION ONE DESCRIPTION OF OPERATION TWO
Test Data Machine Spindle HPC Jet Spindle Machine Spindle  GJet Spindle
Spindle Speed (rpm) 12,000 45,000 12,000 44,500
Cutting Speed (Vc in m/min) 57 212 38 140
Depth of Cut (mm) 0.2 0,15
Total D.O.C. – Hole [mm] 6.0 6.0
Table Feed (Vf in mm/min) 1,200 2,200 800 2,200
Machining Time (min) per part 18,225 6,075 2,025 675
Tool life – high, average, low Low High Low High
Surface Finish – high, average, low Same Same
Cycle Time Improvement (in %) 67% 67%
 CONDITIONS
Coolant Pressure & Flow rate 80 bar & 31 l/min
Holder Type HSK 100
Material & Hardness Brass & 160HB
Cutting Tool DHF UNE 150801
Diameter (mm) 1.0 and 1.5
No. of Teeth 2
CONTACT US

Accessibility Toolbar