Unique Tooling Solutions for MaximizingFounded in 1945 by Walter Greenleaf, Sr. Family owned and...
Transcript of Unique Tooling Solutions for MaximizingFounded in 1945 by Walter Greenleaf, Sr. Family owned and...
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Unique Tooling Solutions for Maximizing Productivity
Matt GossApplications EngineerGreenleaf Corporation
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Founded in 1945 by Walter Greenleaf, Sr.
Family owned and operated
Facilities in PA and NC
450 + Employees
Sales in over 60 countries
Greenleaf Europe and Greenleaf China
Saegertown, PA Location
Greenleaf Corporation designs and manufactures standard and special Ceramic and Carbide Inserts and the supporting Steel Tooling.
ISO 9001 Since 1994
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Aerospace Oil & Gas, Energy Die & Mold
Roll Turning & Heavy Machining
Where You Find Greenleaf
Bar Peeling & Tube Scarfing
Railroad
Crank/Cam
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1945
1971
1973
1985
WG600
WG700
XSYTIN®-1
A History of Continuous Innovation
1945
1971
1973
1985
2006 2016
2011
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Today's Agenda
1. What are whisker-reinforced and phase-toughened ceramics?
2. Properties of whisker-reinforced and phase-toughened ceramics
3. Common HRSA materials suitable for machining with ceramics
4. Applications most suitable for machining with ceramics
5. Programming tips for machining with Ceramics
6. Tool maintenance and handling
7. Tool wear and how to evaluate tool life
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SiC Whiskers
Aluminum Oxide (Al2O3)
+
Whisker-Reinforced Ceramics
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Whisker-Reinforced Ceramics
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Phase-Toughened Ceramics
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Unique ceramic blend
In-place grain growth
Phase-Toughened Ceramics
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54,000 PSI
174,000 PSI
100,000 PSI
Comparable Strength
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0
2
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Speed
feed
Whisker-Ceramic Sialon Phase-Toughened
Phase-Toughened vs. Traditional Ceramics
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Tool Life vs. Feed Rate
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Cu
ttin
g Sp
ee
d
(SFM
)
Carbide
WHISKER-REINFORCED CERAMICSWG-300®/WG-600®/WG-700™
PHASE-TOUGHENED CERAMICSXSYTIN®-1
Feed(IPT)
Ceramic vs. Carbide Turning
How Ceramics Work
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Whisker ceramics retain strength and hardness well beyond 1000°C
Carbide will turn to taffy at that temperature!
Heat Dissipation in Ceramic Machining
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Super Alloys
Hardened Steel Machining
Cast Iron Machining
Oxide Ceramic(White) Al2O3
Black Ceramic
Al2O3 + TiC
Whisker-Reinforced
Ceramic
Silicon Nitride
GEM-19™ GEM-7™WG-300®WG-600®WG-700™
GSN100™
Phase-Toughened
Ceramic
XSYTIN®-1
Greenleaf Ceramic Grade Profile
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Nickel AlloysInconel
WaspaloyHastelloy
Cobalt-Based AlloysStellites
Haynes AlloysWeld Overlays
Powdered Metals
HRSA Materials
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Turbine Engine
Shafts
Cases
SpoolsBlisks
Discs
Oil & Gas
BOP
Flanges
Adapters
Valves
High-Temperature Resistance
Wear & Corrosion Resistance
HRSA Applications
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Pre-ChamferingDOC Notching
Programming Techniques
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Varying the Depth of Cut
Programming Techniques
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Programming Techniques
Turning to a Shoulder
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Ramping
Programming Techniques
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Greenleaf Solution
Layout optimal tool path and step over for WG-6250-3
• 900 SFM (274 m/min)
• 0.0025 IPR (0,06 mm/rev)
• 1 insert per part
• 3-minute cycle time
Programming Techniques
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Standard Edge Preps
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Edge Prep for Interrupted Cutting
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Cutter PositioningClimb (Down) MillingKeep cutter
engaged in cut
Programming Techniques
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Tool Maintenance
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Inspect the insert pocket, seating and clamping
Poor seating
Damaged shim seat
Bell-mouthed insertpocket
Tool Maintenance
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Undesirable Tool Wear
Chipping Fracture
Ceramic Tool Wear
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Typical Tool Wear
Ceramic Tool Wear
Flank Wear Notching
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Heavy notch, light flank wear
Heavy notch, heavy flank wear
Proper Indexing Techniques
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Greenleaf Special Tooling Solutions
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Automotive
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Special Milling Cutters
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Aerospace Engines: Greenleaf’s Comfort Zone
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Aerospace Engines: Greenleaf’s Comfort Zone
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Blisk Machining1 Stage HP Turbine4 Stages HP Compressor
Spool PieceShaft
CenterFrame
OGV
LPCompressor
Disks
Compressor
CasingsHigh-Temperature
Casings
Aerospace Engines: Greenleaf’s Comfort Zone
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Tool LayoutsTungsten Heavy-Metal Tooling
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Tool LayoutsTungsten Heavy-Metal Tooling
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Aerospace Engineering
High- and Mid-Pressure Coolant
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While Greenleaf has a full line of standard cutting tools, we have also custom designed and manufactured thousands of special
inserts and tools for aerospace and power generation parts.
Aerospace Engineering
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Priority Components:Low Pressure Compressor Section
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Rough Milling Blisk Slots
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Slotting Cutter & Inserts – U.S. Patent Nos. 8,267,625 & 9,073,131
Rough Milling Turbine Disk Slots
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Speed: 2874 SFM (876 m/min)Feed: 53 IPM (1346 mm)Chip Load: 0.0024 (0,06mm)
Part thickness: 1.13” (28,7mm)Time to feed: 1.3 seconds
Material: Rene 95, 48-50 HRc
Rough Milling Turbine Disk Slots
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Example
One chamfer insert
One grooving insert
New machining parameters using WG-300®:Speed: 1,600 SFM (488 m/min)Feed: 0.0012 IPR (0,03 mm/rev) 28 second cut time!
Concept sold to many companies around the world.
Finishes groove in 1 plunge with 1 edge!
Overview of the Ring Max™ System
BX-169 Groove6.957” (171.71mm)
cutting diameter
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Technical Ceramics
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• Cutting tools• Metal forming• Extrusion dies• Can tooling• Valves and seals• Pumps• Bearings• Fluid flow control
• Electronics• Microwave absorbers• Semiconductor components• Wear components• Medical components• Implants• Battery dies• Weld rolls
Technical Ceramics
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