Invest Cast, Inc. - Cast Metal Production and Prototypes InvestCast celebrating 30 years in business offering investment casting InvestCast celebrating 30 years in business offering investment casting

We are the largest, fastest producer of
cast metal prototypes in the U.S.A.

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Phone: 763-788-6965

Technical Information

February 5, 2012

 

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We’ve listed some of our specifications here, but if you are a new client, need advanced information, or have further technical questions, let us know – that’s why we’re here.

Design Data Tolerances

LINEAR TOLERANCES

Length Dimensions

Normal

Premium

Critical dimensions require additional operations and are influenced by alloy and casting configurations.

UP to 1/2” ± .007 ± .003
1/2 to 1” ± .010 ± .005
1 to 2" ± .013 ± .008
2 to 3” ± .016 ± .010
3 to 4” ± .019 ± .012
4 to 5” ± .022 ± .014
5 to 6” ± .025 ± .015
6 to 7" ± .028 ± .016
7 to 8” ± .031 ± .017
8 to 9” ± .034 ± .018
9 to 10” ± .037 ± .019

Flatness & Straightness
.003 to .005 TIR/Linear inch

Draft Angles
Generally none are required – however shapes with thin sections may require injection systems incorporated into the mold.

Surface Finish
100 Micro or Better

Fillet & Edge Radii
.010" or greater 3/64" Typical

Out of Roundness

Hole Tolerances

Diameter

TIR

Diameter

TIR

.50” .010" UP to .25" .003"
1.00” .015" .25" to .50" .004"
1.50” .020" OVER .50" .005"
2.00” .025"    
       

Angles/Draft - - - ± 1/2°

Equipment List:

QC - INSPECTION

 

FINISHING

  • Angstrom V-71 Spectrometer
  • Numerex CMM
  • Deltronic Optical Comparator
  • Shell Test Lab
  • Wilson Rockwell Hardness Tester
  • Surface Plates (2)
  • CimCore Infinite 6 axis arm

 

  • 18,000 PSIWater Blast Unit
  • Pneumatic Knockout Machines
  • Tannewitz 20" Friction Saws (2)
  • Grob 13" Bandsaw (2)
  • Wheelabrator Spin Blast Unit
  • Kolene System withWaste Treatment System
  • Goff Shot Blast Machines (2)
  • Empire Sand Blast Machines (2)
  • Rotary Carousel Grinders
  • Hydraulic Straightening Presses (3)
  • Dual Head Off Hand Grinding Stations (2)
  • Hot Straightening Ovens (2)
  • Empire Barrel Blast
  • VA Tech Robotic Grinder

WAX ROOM

 

  • MPI 50 ton C-FrameWax Injector
  • MPI 30 ton C-FrameWax Injector
  • MPI 25 ton AutoWax Injector (2)
  • Jahnke 18 ton C-FrameWax Injector (2)
  • Jahnke 12 ton C-FrameWax Injector
  • Overhead Conveyor System (2)
  • Wax Distribution & Conditioning System
  • MPI AutomaticWax Assembly

 

SHELL ROOM

 

TOOL ROOM

  • Overhead Conveyor System (3)
  • Shell O'Matic Robot
  • Slurry/Stucco Beds and Dust Collector
  • VA Tech Shell Maker Dry-Cabinet Conveyor

 

  • Bridgeports (5)
  • LeBlond Lathes (2)
  • Drill Presses (3)
  • DoAll Surface Grinder

FOUNDRY

 

MISCELLANEOUS

  • IRC 350 KW Melting Center
  • 600 lb. Crucible (2)
  • 150 lb. Crucible
  • 400 lb. Resistance Melter
  • Ergotech Trolley System and Manipulator
  • Hanel Lean-Lift (Vertical Storage Unit)
  • Pyrotech Aluminum Degassing Unit
  • Dewax Oven w/After Burner System
  • Firing Ovens (4)
  • MIFCO 50 - 75# Gas Melter

 

  • 100 HP Air Compressor
  • 75 hp Air Compressor
  • 250 Ton Cooling Tower
  • Dust Collector Systems
  • Bar Code Job Tracking System

    PROTOTYPES
  • 3D Systems SLS styrene prototype machines (6)

 

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