Montronix, Inc. & Lean Manufacturing -...
Transcript of Montronix, Inc. & Lean Manufacturing -...
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Reducing manufacturing costs while detecting and diagnosing machining problems.
Montronix, Inc. & Lean Manufacturing
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Why Montronix?
Montronix started in 1990 A spin-off from Kennametal -- advanced manufacturing
systems division
Global market leader since 1995 with 9 offices - 3 continents
Largest tool and process monitoring company in North America Largest annual sales
Most customer-support specialists
Restructured in 2001 Increased customer focus
Improved products and services
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Montronix Strength
Knowledge • Applications • Process variability
relationships • Process
economics • …
• Diagnostic tools
• Hardware • Software
• Project Mgmt • Customer Support
• Certified Training
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Satisfied Customers Worldwide
> 250 End users
DaimlerChrysler
General Motors
SKF Bearings
PBR Automotive
Delphi
Bosch
Ford
Cummins
Navistar
Allison Transmission
…
> 100 OEMs
Chiron
OKK
Enshu
Lamb
Hueller Hille
Emag
Fuji
…
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Unmonitored Process is Expensive!
Wor
n To
ol
Bro
ken
Tool
Tool
ing
Dam
age
Scra
p / Rew
ork
Mac
hin
e Dam
age
Maj
or C
rash
$100,000
Source: Montronix study
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Montronix Tool & Process Monitoring System Justified on… • Expensive / Critical Machines.
• Expensive Components.
• Expensive Tools.
• Expensive/Critical Process (High value addition to the component)
• Shorter cycle time processes (Mass production: Auto Industry)
• Longer cycle time processes (Job Production: Aero & Heavy Engg.)
Montronix Tool and Process Monitoring System in a Manufacturing system is a wise investment that
• Pays back faster than any capital investments.
• One major event pays back the Montronix investment.
• Return on investment, Event based not the Time.
• Enjoy extended quality life of machine as bonus on Montronix investment.
(Even on low cost Machines)
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Montronix Solutions
Helpful Identify machine has a problem
Identify machining process has a problem
Help diagnose and solve the problem
Invisible Monitor the situation without human involvement
Visible only when a problem occurs
Easy to use Menu driven navigation
Montronix certified training
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Montronix & Lean Manufacturing
Improves machining efficiency Increase uptime – reduce downtime
Reduce cycle-time
Keeps cost low Reduce scrap & rework
Reduce investment – e.g. gaging and probing equipment
Reduce manpower for machine supervision
Optimizes use of consumable assets E.g. cutting tools
Protects expensive equipment Catastrophic events
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Protect machine & expensive tooling
Monitor & optimize process
Reduce warranty costs
Reduce scrap & rework
Reduce start-up time
Reduce cycle time
Reduce post-process inspection
Increase productivity & throughput
Improve quality
Improve customer satisfaction
Be more competitive
Montronix Advantage
Machining Process & Domain
Knowledge
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Management Benefits
Quality by Strict Process Control, not by Inspection.
Enhanced Productivity.
Quality Consistency /Assurance .
Reduced cost per piece.
Optimum Utilisation of Man, Machine and Tooling.
Enhanced Quality life of the machine.
Safe Working Environment for both Operators and Machines
Minimum Tool Inventory, Reduced Overheads.
Ensured Process.
No Surprise rejections.
Document of process for evaluation (M-view, Event Log).
Aid for “Continuous Improvement”
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Benefited Areas
Process Engineering
• Helps in Optimising the Process
• Visualise process on real time
• Measure of incoming material quality
• Enhanced machine capacity
Tool Management
• Optimum Utilisation of tool
• More Components per Tool
• Reduced Tool Inventory
• Evaluation of Tool Quality
• Log of Tool Life
Maintenance • Reduced machine down time Costs • Reduced Spares cost • Enhanced Machine life • Machine condition monitoring on • real time
Production • Quality by Consistent process • Optimum Manpower Utilisation • Ensured Machine Uptime • Ensured Machine accuracy over machine life • Log of process events in Ghost shift • Reduced Scrap • Reduced WIP
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Significance of Montronix Presence
Component Produced on the machine Equipped
with Montronix Tool and Process Monitoring
system is ensured of,
All operations performed
All performed operations are with good tools
All operations are performed with frozen cutting
parameters.
Acceptable metallurgical structure.
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Process Establishing for “Cpk” And “Cycle Time” Involves.
Machine Mechanical Stability.
Machine Electrical Capability.
Fixture/Component holding rigidity.
Tool capacity. to cut higher depths, feed rate, tool wear etc)
Coolant parameters (Flow, Pressure, Temperature.)
Component solidity.
Achieving expected Component quality
All the above constituents of Manufacturing System are frozen and expected to adhere with time, except Tool Wear.
i.e. Tool Wear is a major parameter to achieve Cpk.
Tool wear is managed by establishing Fixed Replacement Policy (FRP) for consistent / improve Cpk.
Unfortunately, In shop floor ???? ………...
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Fixed Replacement Policy (FRP) for Tools Does Not Work Always
WHY?? Improper Resharpening / Tool Geometry. Alternative Tools used . Hard Spots in the Component. Metallurgical variations in Input Material. Improper Coolant supply-Pressure/Flow/Temperature Contaminated Coolant. Machine Deterioration/Slides/Vibrations/Guide Bush/Belt Slippage Manipulated Feed rates. Improper Clamping of Tool/Work/Fixture
LEADS TO
EITHER Over Utilisation of Tool Resulting in Quality Deviation.
OR Under Utilisation of the Tool Resulting in Increased Cost Per Piece .
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How Tool Monitoring Works?
Montronix ‘Tool & Process Monitoring System’ works on the principle of signature comparison on “Real Time" basis.
Ideal signatures for an acceptable process are acquired with new tools & frozen parameters.
Signatures are acquired with worn-out tool for the process.
limits are defined by comparing both signature strengths to allow the process for producing quality components.
In the event, the signal strength exceeds the Limits ,the Tool Monitoring processor influences the machine & inhibits further operation.
The above Procedure of setting the limits is done for all the tools in the process.
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Collision
Minimal signal during
axes movements.
Sudden rise in signal level
due to collision.
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Why monitor power? Power is linear so change in motor load is a change in
power. Current is not a sensitive indicator of power at low loads in three phase
motors. At low loads current hardly varies .
Gross Tool Overload
Power Sensor PS100
Monitored Plot Tool Overload
Detected
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Tool Breakage
Tool Breakage Detection
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Missing Tool/Component/Process
Missing tool alarm triggered
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Montronix Tool Monitoring System Components
PROCESSORS
Machine Health Monitoring & Collision Monitoring –
Spectra Pulse Single Station Monitoring Spectra SL3, Spectra PC1.
Multi Station Monitoring
Spectra GL1,Spectra GL2, Spectra PC2,
SENSORS
Power Sensor with digital Gain Module
Broad Band Vibration Sensor
Single Axis & 3 Axes ICA Force Sensor
Retro Bolt Force Sensor
Torque Sensor
HMI
GLCD: Graphic Liquid Crystal Display
M-View: Visualisation and Diagnostic Software
IPM: Integrated Process Monitoring Software
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Established Application with Right Sensor
Common Application Application Dependent Solution
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Application Examples
Machining centers (All types).
Turning centres, Turn-mill centres, VTL.
Gun drilling Applications.
Gear Cutting (Hobbing, Shaping, Shaving).
Broaching.
Grinding.
Honing.
Multi-spindle drill and tap transfer machine stations.
SPMs(Skiving& Burnishing,Round table SPMs).
Customised Applications.
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What’s Next?
Let’s move forward