DS-0066 rev B

A pC B GROUp CO.

T H E

M O D A lS h O pI N C .

NDT-RAM™

Copyright 2015 The Modal Shop, Inc. In the interest of constant product improvement, specifications are subject to change without notice.NDT-RAM & LanSharc are trademarks of The Modal Shop, Inc. ® Property of respective owners

A pC B GROUp CO.

NDT-RAM™

“Simplifying with Smart Sensing Solutions”

T H E

M O D A lS h O pI N C .

BENEFITS

• 100% inspection - ensures that every part is objectively tested• No part preparation required for inspection• High throughput - approximately 3 seconds per part, typical*• Simple to learn and use application software • Reduces scrap costs associated with false rejects• Greatly lowers operating expenses by eliminating consumables• Industrial package - NEMA4 enclosure allows factory

floor operation• Versatility - same system can test many different parts• Eliminates quality recall/containment costs• Financially justified - ROI analysis available

TypICAl USES

• Production - In-Line Inspection• Field Service - Troubleshooting• Quality Control - Spot Checking• Engineering - Development

SUCCESSFUl ApplICATIONS

• Powdered Metal• Iron Castings• Forgings• Metal Stampings• Aluminum Foundry• Ductile Metals• Ceramics• Composites

In the world of manufacturing today, theliability of shipping a defective part can becatastrophic for you, your customer, and theconsumer. Resonant Acoustic Method NDT(RAM NDT) is designed to help you deliverfully inspected parts, economically and ontime, giving you and your customer confidence in the quality of your parts.

The principle of Resonant Inspection is simple: every part has a unique resonantsignature or pattern that reflects its structural integrity. A deviation from theexpected signature or pattern can indicate the presence of a flaw. For example, a bell with a crack

no longer has a clear ring or the ability to holdits tone.

The resonances of a structure are defined by itsmass, stiffness and damping. These resonantfrequencies can be measured in most rigidmaterials including most metals, ceramics, andcomposites. NDT-RAM systems detect frequency shifts which can be caused byimperfections such as cracks, porosity andvoids, as well as variances in nodularity,dimension, geometry, weight, density andmanufacturing processes.

part quality Inspection Application:Resonant Acoustic Method NDT

Helping you test,model, and modifythe behavior ofstructures and processes.

3149 E. Kemper RoadCincinnati, Ohio4 5 2 4 1 - 1 5 1 6U . S . A .

Ph. 513-351-9919FAX 513-458-21721-800-860-4867www.modalshop.comw w w . n d t - r a m . c o m

Helping you test,model, and modifythe behavior ofstructures and processes.

3149 E. Kemper RoadCincinnati, Ohio4 5 2 4 1 - 1 5 1 6U . S . A .

Ph. 513-351-9919FAX 513-458-21721-800-860-4867www.modalshop.comw w w . n d t - r a m . c o m

CAll FOR FREE pARTS EvAlUATION AND TEST REpORT

TRADITIONAl NDT TEChNIqUE COMpARISON

NDT-RAM SySTEMS

• Ideal for in-line, automated, objective inspection• 100% inspection of every part prior to shipment• In-line monitoring to improve process• Fast throughput - approximately 3 seconds

per part, typical*• Customizable conveyor configurations• Adaptable to existing process automation

IndustrialComputer

Industrial ConveyorSystem

Heavy Duty Frame

Control Panel

Lockable Wheels

Industrial Impactor

Photo Eyes

Ejector

Light Tower

Major System Components AUTO DTF3 SEMI MAN TS2LanSharcTM Smart Digital Controller √ √ √ √ √NDT-RAM Software √ √ √ √ √Microphone √ √ √ √ √Statistical Analysis Software √ √ √ √ √Industrial Impactor √ √ optional √Impact Hammer optional √Force Transducer √Industrial Computer √ √ √Laptop Computer √ √Turnkey Conveyor System √

*Part throughput rate dependent upon part size, belt size, data acquisition setup parameters, and other part handling requirements

N/AcostN/Arequirements

/ / results

costsrequirements

throughput

/ / Brazing/bonding/weldingInternal

(external)

/ variationssignificant

/ property/ / / processes/operations/ Cracks/chips/porosity/voids

Excellent Fair Poor ET MT/PT UT RT RAMype AcousticResonant RadiographyUltrasonicParticleMagnetic CurrentEddy Defect T y

Missed Material

tructurally Slot Product /

LocationSurface Defect

raining/CostPart Speed/T

raining Tinspection Overall

CapacityQuantitative Automation

Automation Automation /

NDT-AUTO

LanSharc

Microphone

RAMAcousticResonant

/

/

N/AN/A

/ /

/ /

/

/ / / / /

ET MT/PT UT RT RadiographyUltrasonicParticleMagnetic CurrentEddy

NDT-AUTO Fully automated system forturnkey in-line 100% inspection

NDT-DTF3 Fully automated system for highvolume sort of small parts

NDT-SEMI Core NDT system componentsfor implementation with existingautomation

NDT-MAN Manual system for laboratory orspot checking use

NDT-TS2 Semi-automated test station formanual part placement withautomated testing

Who needs NDT Resonant Inspection?

Manufacturers or users of metal parts who...• have substantial inspection costs• require 100% parts inspection• desire to improve part quality• produce and/or use safety-critical parts• have customers demanding higher quality• have substantial scrap costs due to false rejects

What does NDT Resonant Inspection detect?

• Cracks and chips• Porosity and voids • Nodularity• Residual stress• Variations in hardness• Bonding, welding, or brazing failures• Machining or heat-treating processes

A microphone is used totransform the sound (heardand unheard) into electricalsignals for analysis.

The smart digital controlleruses a Fast FourierTransform (FFT) methodto determine frequencycharacteristics.

NDT-RAM software compares the results to criteria limits and acceptsor rejects the part accordingly.

An industrial impactor tapseach part with a measuredand repeatable force, pro-ducing sound.

RAM NDT provides confidence and peace of mind. It is simple, reliable and affordable. here’s how it works...

Pass

Fail

IMPACT THE PART PROCESS THE DATAMEASURE THE RESPONSE

...resonant frequency peaksto shift in both frequencyand amplitude.

...resonant frequency peaksto shift frequency butmaintain amplitude.

...peak shifts with morepronounced splits inresonant frequency.

...resonant frequencypeak energy to disappearcompletely.

Changes in mass, stiffness & damping due to certain defects can cause...

www.ndt-ram.com 800-860-4867 Cincinnati, OH USAwww.ndt-ram.com 800-860-4867 Cincinnati, OH USA

QUANTIFY THE RESULTS

NDT-RAM Software Showing Resonant Frequencies and Sort Result

Allows you to fine tune criteria by using standard spreadsheets to evaluate statistical data taken for each part tested.Data from NDT-RAM can be exported to Microsoft® Excel® for statistical analysis. Shown below is a typical scatterplot of resonant frequencies in a given criteria range for a lot of 5000 parts.

NDT-RAM’s Report Generation

NDT-RAM’s Graphical User Interface

Graphical featuresprovide easy visualdata evaluation

Data shows color-coded spectra forgood and bad partsagainst acceptablecriteria ranges

Clear indication ofpass/fail by criteriarange

Investigate Modesupports up to1500 part spectra,labeled good, bador unknown

Statistical outliersindicate presenceof a structuraldefect

Structurally similarparts exhibit consistent resonantfrequenccies