HY Metals Showcases Advanced CNC Machining Capabilities Across Three Challenging Projects

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HY Metals, a leading provider of precision machining solutions with four dedicated CNC production facilities, continues to demonstrate excellence in manufacturing complex CNC machined parts for global clients.

150+

Multi-axis CNC Machines

20 Full 5-Axis

High Precision Units

20 Additional

2+3 Axis Machines

With over 150 multi-axis CNC machines—including more than 20 full 5-axis machines and 20 additional 2+3 axis machines—we deliver exceptional accuracy and surface finish across a wide range of materials and industries. Here’s a look at three recent projects that highlight our expertise.

Extensive Material Capabilities

We work with an extensive range of materials beyond aluminum and steel—including zinc alloys, copper alloys, and engineering plastics like PEEK, PPSU, PC, and POM.

Whether you need a single CNC prototype or high-volume production runs, our four CNC shops have the capacity and flexibility to scale.

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HY Metals Showcases Advanced CNC Machining Capabilities Across Three Challenging Projects

HY Metals, a leading provider of precision machining solutions with four dedicated CNC production facilities, continues to demonstrate excellence in manufacturing complex CNC machined parts for global clients. With over 150 multi-axis CNC machines—including more than 20 full 5-axis machines and 20 additional 2+3 axis machines—we deliver exceptional accuracy and surface finish across a wide range of materials and industries. Here’s a look at three recent projects that highlight our expertise.

Project 1: AL6061 Aluminum Panel with Selective Black Anodizing

This electronic enclosure panel, machined from AA-6061 aluminum, required precision CNC milling of multiple mounting holes and features across a large flat surface. The challenge lay in the post-processing: black anodizing with selective masking to preserve electrical conductivity in specific zones.

Our team applied precision masking before the anodizing process, ensuring that designated contact areas remained bare aluminum for electrical continuity while the rest of the part received a durable, uniform black oxide finish. Every hole position and flatness tolerance was verified using our coordinate measuring equipment, delivering a part ready for immediate assembly.

Project 2: 4140 Steel Gear—Full Machining with Heat Treatment

Gears are traditionally produced by casting or hobbing, but when low volumes or custom geometries make those processes impractical, HY Metals steps in with full CNC machining solutions. This 4140 alloy steel gear presented a significant challenge: machining a high-hardness steel material while maintaining tight tooth profile tolerances and a precise center bore with keyway.

Unlike cast gears, every tooth profile was milled directly from solid 4140 bar stock. After machining, we completed in-house heat treatment to achieve the required surface hardness and core toughness. The result? A fully functional gear matching drawing specifications exactly, without the tooling costs and lead times of traditional gear manufacturing. Our material verification process confirmed 100% 4140 alloy composition before production began.

Project 3: Aerospace Component in AA-7075 Aluminum

Aerospace applications demand the highest standards of both material integrity and machining precision. This small structural bracket, machined from AA-7075 aerospace-grade aluminum, is representative of our ongoing work in the aviation sector.

7075 aluminum offers exceptional strength-to-weight ratio but can be challenging to machine due to its work-hardening characteristics. Our experienced machinists optimized tool paths and cutting parameters to deliver clean, burr-free surfaces and tight dimensional tolerances. Every batch undergoes material verification via XRF spectrometry to confirm aerospace-grade alloy composition—critical for flight-critical applications.

Comprehensive CNC Machining Solutions

These three projects illustrate the breadth of HY Metals’ custom CNC parts capabilities. We work with an extensive range of materials beyond aluminum and steel—including zinc alloys, copper alloys, and engineering plastics like PEEK, PPSU, PC, and POM. Whether you need a single CNC prototype or high-volume production runs, our four CNC shops have the capacity and flexibility to scale.

Quality is built into every step. From incoming material verification and first-article inspection through in-process checks and final dimensional validation, we ensure every part meets your exact drawing specifications. Our 16 years of serving US and European clients has earned us a reputation for consistent quality, on-time delivery, and responsive engineering support.

Looking for a reliable precision machining partner? Contact HY Metals today for your free quote on custom CNC machined parts.

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