Manufacturing of Complex Steel Foundry Patterns & Core Boxes

A tier 2 supplier to the auto industry approached Hitech to develop and manufacture a complex automotive foundry pattern and core box. Faced with an aggressive deadline we agreed to fabricate this tooling, designed for high volume production. The part as highlighted below was precision machined using state of the art CNC vertical milling machinery, incorporating drilling, boring, turning, and tapping techniques to produce the customer specified configurations. A tight tolerance of ±.0001" was maintained throughout. Machining was followed up with hand scraping and finishing techniques, and mating of parting lines. The Sinto/DISA pattern featured a 20"x24" flask size and multiple core boxes. The pattern and core box were composed of steel, presenting a .2 micron machined to 1 micron hand polish finish. This pattern is designed to handle 165,000 cycles per year.

Comprehensive dimensional and functionality testing was implemented to confirm quality and accuracy. Turnaround time for this production was 4 weeks, delivered to the customer in Cincinnati, OH. For more details about this complex pattern manufacturing or other foundry pattern solutions please see the table below or contact us directly.