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HITECH Shapes & Designs a Division of Seilkop Industries, Inc.

Manufacturing of a Steel Shell Mold Pattern

Hitech was contracted by an Industry leader of shell molded iron compressor components, who required high speed milling of patterns to reduce draft required in casting process. The utilization of Hitech high speed milling and machining software was critical factor in the success of this project.

Our engineers developed the process and custom tooling, complete with 2D and 3D renderings and simulations. We were able to complete the machining of the tooling’s deep pockets while holding very tight tolerances of ±0.0005” with our advanced vertical milling machinery. The tooling was constructed with 4140 steel, reaching final dimensions of 45”x30”x26”.

The completed pattern featured a micro machined finish of 3.2 micron, and a 1 micron hand polished finish, this rendered secondary finishing unnecessary. Comprehensive dimensional testing and functionality testing were carried out to ensure customer specifications for quality and integrity were met. The shell mold pattern was completed within a 3 week lead time, delivered to the customer in Eastern Ohio. For more details about this draft reducing custom shell mold pattern fabrication, or our precision manufacturing solutions please see the table below or contact us directly.

CAD Drawing of Steel Shell Mold Pattern
CAD Drawing of Steel Shell Mold Pattern
Custom Manufacturing of Steel Shell Mold Pattern
Custom Manufacturing of Steel Shell Mold Pattern

(Click image to enlarge)

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Manufacturing of Steel Shell Mold Patterns Project Highlights

Product Description
High speed milling of  shell mold patterns
Capabilities Applied/Processes
No secondary finish required because high speed milling technology utilized.
Equipment Used to Manufacture Part
Vertical milling machine
Overall Part Dimensions
45” x 30” x 26”
Tightest Tolerances
+/- 0.0005”
Material Used
440 Steel
Material Finish
3.2 micron machined to 1 micron hand polish
In Process Testing/Inspection Performed
Dimensional Testing, Functionality Testing
Industry for Use
Shell mold foundry
N/A Job Shop 1 time tooling
Delivery/Turnaround Time
3 weeks
Delivery Location
Eastern Ohio
Standards Met
Customer Specifications, 2D/3D CAD Drawing
Product Name
Shell Mold Pattern

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