RAM-NDT

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• RAM-NDT
• Resonant Acoustic
• Nondestructive Testing

Application
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• Aerospace
• Automotive
• Commercial
• Construction
• Marine
• Medical
• Military

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Resonant Nondestructive Testing
The Resonant Acoustic Method is a form of
Resonant Inspection (RI). NDT can detect
imperfections such as variances in overall shape,
weight, cracks, and density of parts. It can
also detect if any process has as been missed,
such as a machine or heat treating process.
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Every part has its unique vibration signature
(its resonant frequency). This resonance will be
almost exactly the same from good part to part.
However it will change when there is an internal
or external change or imperfection. Pipe
organs, bells, carillons and xylophones are
examples of how controlled incremental changes
in a part create incremental changes in
resonance or tone. When a bell cracks
however, it doesnt have a clear ring, it is
flat or dull sounding. It looses the ability
to hold its tone. The same is true of a part
that has a flaw.
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Resonant Acoustic Method
IMPACT Part is excited by applying a known and
repeatable force. This is accomplished by
either an electric or manual hammer.
MEASUREMENT The acoustic response is measured by
the microphone and digitized by the Smart Digital
Controller
ANALYZE NDT-RAM compares the results with the
acceptable criteria limits to determine if the
part is accepted or rejected
PERFORM FFT The Smart Digital Controller performs
an FFT on the data, taking it from the time
domain to the frequency domain
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ANALYZING
The result is a response frequency spectrum that
is unique to your part. Using this spectrum, we
can look for significant structural changes in
your parts.

• The principal properties of an object are
• Mass
• Stiffness
• Damping

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Peak moves lower in both frequency and amplitude.
Peak shifts left (lower in frequency)
Defect causes a frequency split.
Peak is eliminated entirely
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Monitor Flat Panel
Photo Eyes NEMA 4 Transmiter/Receiver
Eject Cylinder pneumatic pushes good parts,
allows defective parts to fall into a lock-box
Encoder - 100PPR
Industrial Rack Mount PC w/ NEMA rating
Wheels and Lockable Casters Provide flexibility
and mobility
PLC stocked and easily available overnight
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With the NDT-RAM system, you can be online in one
day. After an acceptable range of resonant
signatures from a set of good parts is
established, each new part is tested by
comparing its signature to the acceptable ranges
and limits.
Click on picture to run a demo movie of the
NDT-RAM automated system
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Introducing NDT-RAM Systems
NDT-MAN NDT-SEMI NDT-AUTO The Manual
Resonant The Semi-automated System The
Automated Resonant System System is. It is
existing production line. It production
line. Parts are fully completely portable can
directly interface with tested in seconds,
providing and can be used to any programmable
logic unparalleled performance, inspect a wide
range of parts. controller. accuracy, and
speed. Ideal for spot testing Or
troubleshooting Engineering Development
Quality Control Spot Testing Field Service
Troubleshooting Production 100 Testing
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THE NDT-RAM ADVANTAGE
No Part Preparation - No cleaning, dyes,
magnetizing, or other preparation required. Fast
- Parts are fully inspected as fast as one part
per second. Accurate - Computerized pass/fail
acceptance ranges ensure inspection accuracy.
Versatile - System can be used to test many
different configurations of parts. Select the
desired part template and youre ready to go.
Easy to Use -
Simple interface make the NDT-RAM system easy to
learn and operate. Flexible Can be integrated
into existing production lines.
- Rugged - Designed to
withstand a wide range of plant environments.
Security - Provides three different user
levels Manager, Technician, and Inspector.
Report Generation - A
summary report is easily generated, including
statistical analysis. Value Added - The
confidence that every part is tested and approved
parts are defect free, allowing you to focus your
attention and efforts on your core business.
Service Our training and experienced
service staff is committed to serving our
customers needs.

TOTAL CUSTOMER SATISFACTION
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Resonant Inspection NDT systemsare installed and
providing solutions at

• GKN Sinter Metals MicroMetals
• Capstan Atlantic WesCast (Georgia Ductile)
• Federal Mogul BorgWarner Automotive
• Sintering Technologies Harvard Industries
• Product Assurance Services ASCO Sintering Company
• Intermet Foundry Alpha Sintered Metals
• Wapukia Foundry Ohio Cast, Inc
• Keystone Powdered Metals Cloyes Gear
• Burgess Norton Mfg Nichols Portland
• Diamet Corporation Metco Sintered Components

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Manufacturers that can benefit from RI-NDT

• Powdered Metal
• Aluminum Foundry
• Iron Casting
• Ductile Malleable Iron
• Forged Metal
• Ceramic
• Metal Bonding
• Composites

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Examples of Successful Resonant Inspection
Applications
Linkages Medical Implants Park Disks Piston
Pats Pulleys Rocker Arms Shafts Silicon
Wafers Spark Plugs Splined Connectors Steering
Wheels Suspension Rods Timing Rings Transmission
Rings Turbine Blades Turbine Disks Value
Seats Wheels Hugs Yokes
ABS Rings Airbag Vessel Abrasive Wheels Bearing
Caps Bearing Rings Bearing Rollers Brake
Calibers Cam Drives Cam Shafts Case
Bases Carriers Clutch Plates Con Rods Drill
Housings Drive Sprockets Engine
Mounts Filters Gears Guards
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Who needs Resonant Inspection? Manufacturers or
Users of Powder Metal Parts          Have
substantial inspection cost          Have
customers demanding higher quality         
Have substantial scrap costs due to false rejects
         Produce or use safety-critical
parts          Require 100 inspection on their
parts          Desire to improve quality of
their parts  
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• TMS NDT-RAM can detect
•        Cracks, chips, and holes
•        Porosity
•         Residual stress
•        Out-of-tolerance dimensions
•       Variations in hardness or density
•        Bonding, welding, or brazing failures
• Machining or heat-treating processes

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Service Contract Benefits

• Standard Program
• Return to factory
• Software upgrades at list price
• Standard training rates at 1,200 per day
• Calibration cost at 800
• LanSharc replacement at 6,000
• Industrial computer replacement at 7,500

• Service Contract
• 24 hour turnaround on replacement parts
• TMS maintains a separate inventory for service
  contract components
• Application software updates at no charge
• 50 discount on additional training and
  consulting rates
• One free calibration after 12 months

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Detection Powder Metal Defects         
Contamination - foreign materials or powder
clumps that result in voids or weakness         
Green part damage - handling and/or moving to
sintering          Temperature or atmosphere -
provide problems during sintering         
Missing coining, double coining, or miss-strikes
Casting Defects          Cold
shunts          Shrink crack         
nodularity (ferrous) silicon and other
constituents (e.g., aluminum)         
Unrelieved stress or lack of compressive
stress Forged Defects         Miss-strikes or
double strikes         Machine problems such as
bar end sticking, eccentric piercing or
forming          Seams or inclusions in steel
feed stock          Quenching material problems
from tool-cooling sprays
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Resonant Inspection NDT with TMS
COST EFFECTIVE, PROVEN SOLUTIONS TOTAL
CUSTOMER SATISFACTION
Thank You