Presentation Transcript
Abrasive Water Jet Cutting : Abrasive Water Jet Cutting
MIT Media Laboratory
With the assistance of Brygg Ullmer and Andrew Houck
Sources: http://www.waterjets.org, http://www.omax.com,
http://www.flowcorp.com Prof. Isaac Chuang
Motivation I : Motivation I 4” titanium
Motivation II : Motivation II Cut up to 2” thick material
0.020” tolerances typical
Machine virtually any 2D shape
Extremely fast setup and programming
Environmentally friendly
Motivation III : Motivation III
Outline : Outline 1. History
2. Technical Overview
How high-pressure water jet is created
Pure waterjet vs. abrasive waterjet
3. Applications guide
4. Safety Rules
History : History http://www.flowcorp.com
Technical Overview : Technical Overview System Components:
High pressure water pump
Precision XY table
Controller (PC)
Abrasive Jet
Our machine: Omax 2652
Water Pump : Water Pump High Pressure Water
Requirement: generate and control water at pressures of 60,000 psi
X-Y Stage : X-Y Stage Design:
Tolerance:
0.0005” (0.01mm)
Pure Water Jet : Pure Water Jet 2500 feet per second
Pure Water Jet : Pure Water Jet
Abrasive Jet System : Abrasive Jet System Abrasive stored in hopper
Water goes through sapphire orfice: 2500 feet per second. Suction draws abrasive and air through plastic feed tube
They combine in mixing tube to form cutting stream at 1000 feet per second
Pure Water Jet : Pure Water Jet
Abrasive Jet System: OMAX : Abrasive Jet System: OMAX
Technical Overview II : Technical Overview II
Other Manufacturers : Other Manufacturers Also: Paper cutters…
Applications: Pure Water : Applications: Pure Water
Applications: AbrasiveJet : Applications: AbrasiveJet 3D Router
Safety : Safety 1. NEVER LEAVE MACHINE UNATTENDED
2. Do not get finger in waterjet path
3. Wear safety goggles
4. No open-toed shoes
5. Secure piece well
6. Mop up water
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