Post on 16-Dec-2015
transcript
Reproduction of Tractor Reproduction of Tractor ComponentsComponents
Senior Design Project Spring ‘07 Charlie Tullis
Part #One: Exhaust Valve CagePart #One: Exhaust Valve Cage
1914 McCormick 8-16 1914 McCormick 8-16 Mogul TractorMogul Tractor Problem: Customer Problem: Customer
missing partmissing part
Part #One: Exhaust Valve CagePart #One: Exhaust Valve Cage
Original International Original International Harvester Corp. Final Harvester Corp. Final Part printsPart prints
Part #One: Exhaust Valve CagePart #One: Exhaust Valve Cage
Manufacturing Plan
Part Exhaust Head
Process
Sub- Processes Location Tools
Core making
Filling Core wash repair Foundry Core Boxes Sand Mixer daub paste wash
Molding
Molding Mold washing Coring Closing Foundry Patterns Wash Files Paste Chaplets Clamps/Weights
Pouring Foundry
Cleaning/ Inspection
Foundry/Out Source Sand Blaster Grinders Paint Equip.
Part #One: Exhaust Valve CagePart #One: Exhaust Valve Cage
MetallurgyMetallurgy Total Carbon Total Carbon =3.57%=3.57% SiliconSilicon =3.37%=3.37% Cu Cu =?=? CrCr =.02%=.02% MoMo =.01%=.01% PP =.89%=.89%
Desired Brinell Hardness HB=170-200
Actual HB= 321
Part #One: Exhaust Valve CagePart #One: Exhaust Valve Cage
Grey Iron
80% type A graphite
20% type D&E
Part #One: Exhaust Valve CagePart #One: Exhaust Valve CageCasting DefectsCasting Defects
Gas defect only ( Blow)Gas defect only ( Blow)
Part #Two: Intake/Exhaust Part #Two: Intake/Exhaust ManifoldManifold
Manufacturing Plan
Part Intake/Exhaust Manifold
Process Sub- Processes Location Tools
Core making
Filling Assembly Core wash repair Foundry
Core Boxes Sand Mixer daub paste wash
Molding
Molding Mold washing Coring Closing Foundry
Patterns Wash Files Paste Chaplets Clamps/Weights
Pouring Foundry
Cleaning/ Inspection Foundry/Out SourceSand Blaster Grinders Paint Equip.
Part #Two: Intake/Exhaust ManifoldPart #Two: Intake/Exhaust Manifold
MetallurgyMetallurgy CC =3.66%=3.66%Si Si =1.6%=1.6%Ni Ni =0.9%=0.9%CrCr =0.85%=0.85%MoMo =0.65%=0.65%Cu Cu =0.35%=0.35%
Part #Two: Intake/Exhaust ManifoldPart #Two: Intake/Exhaust Manifold
Original ManifoldOriginal Manifold Manifold PatternManifold Pattern Follow Board Follow Board
Part #Two: Intake/Exhaust ManifoldPart #Two: Intake/Exhaust Manifold
Exhaust Core Boxes ( under construction)Exhaust Core Boxes ( under construction)
Part #Two: Intake/Exhaust ManifoldPart #Two: Intake/Exhaust Manifold
Intake Core blankIntake Core blank
Inspection ProcessInspection Process
Solid wallsSolid walls InclusionsInclusions Surface defects Surface defects
(rat tails, (rat tails, buckles, burn buckles, burn on)on)
Pin holesPin holes Cold lapsCold laps
Inspection tools
Visual
Pressure test
Ultrasonic imaging