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RB Tool & Manufacturing Company

Injection Mold Steel Blade

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Injection Mold Steel Blade
Injection Mold Steel Blade

At RB Tool & Manufacturing Company we've established a reputation for meeting exacting tolerances and producing precision results. Our customers rely on us for innovative solutions and high-value manufacturing services. When one of our customers of more than 20 years needed two high-precision steel saw blades for an injection molding application, we knew our 4th axis wire EDM equipment was just right for the job.

The customer's drawings called out dimensions of 4.500" by 3.500" by 0.375", an 8-micron finish, and dimensional tolerances of ±0.001". Composed of 4140 pre-heat treated tool steel, this project highlights the benefits of Electrical discharge machining (EDM), as it would be very difficult and expensive to achieve these dimensions and tolerances with traditional machining.

EDM provides excellent precision even with hard, difficult to machine materials such as tool steels. With this equipment at our disposal, we can deliver a cost-effective solution for challenging products. Additionally, the 4th axis wire allows us to make non-orthogonal cuts with the same precise execution; this added flexibility further enhances the cost benefits associated with EDM. These saw blades provide a good example of the superiority of EDM performance in cases requiring interruptions in the cut.

Dimensional integrity was maintained through rigorous dimensional and visual inspection, including the use of our coordinate measuring machine (CMM), which confirmed the blade matched the solid model, meeting customer specifications, and industry standard ISO9001:2008.

To learn how our EDM production capabilities can meet your needs, whether for low- or high-volume production, Contact us today.

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Injection Mold Steel Blade Highlights

Project Name & Description
Injection Mold Steel Blade
Capabilities Applied/Processes
Part manufactured complete by Wire EDM
Equipment Used to Manufacture Part
4th axis Wire EDM
Overall Part Dimensions
4.500" X 3.500" X 0.375"
Tightest Tolerances
Material Used
4140 PHT
Material Finish
8 microns
Industry for Use
Consumer Products-Injection Mold
In Process Testing/Inspection Performed
Dimensional & Visual Inspect, CMM
2 pcs
Delivery/Turnaround Time
2-3 weeks
Delivery Location
FOB Origin
Standards Met
ISO9001:2008, Solid Model, Customer specifications