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Secondary Machining Enables Small-Batch Product Modifications

Secondary Machining Enables Small-Batch Product Modifications

Last updated : 2026/7/24

Background Information

Another customer came to Yumoto Electric with an existing molded component that needed a shape modification to meet new design requirements. The necessary change was minor, but only a small quantity of parts was required, making it uneconomical to produce a new mold.

Problem Statement

The customer’s challenge was finding a manufacturing method suitable for small-lot production that could still deliver precision results. Traditional molding wasn’t cost-effective, and full production from raw materials would likely exceed both budget and schedule.

Solution Implementation

Yumoto Electric evaluated the possibility of secondary machining (modifying the already-molded part) rather than producing new ones. After receiving the sample product, the team confirmed that the required shape change could be achieved through precision machining.

However, the part’s unique geometry made it difficult to hold on standard machines. To solve this, Yumoto Electric engineers designed a custom fixture specifically for this part, allowing stable and accurate machining.

Results

With the help of the custom fixture, Yumoto Electric successfully performed secondary machining on the molded parts, achieving the new shape specifications without creating a new mold. The customer benefited from a fast, flexible, and cost-effective small-lot production process, minimizing both lead time and expense while maintaining precision and quality.


Step Up Your Project With Yumoto Electric

Yumoto Electric delivers high-quality components fast, worldwide. We provide precision machining for a wide range of metals and engineering plastics. We have experience with over 200 materials including metals such as aluminum alloys, stainless steel, molybdenum, and titanium, and engineering plastics including PEEK, PPS, MC Nylon, and POM.

If you’re unsure about material selection or machining methods, we offer complimentary consultations to help optimize your design and production. For any questions, please feel free to contact us.

Need a Prototype Engineering Support Partner?

About Yumoto Electric Co., Ltd.

Yumoto Electric is an engineering partner specializing in prototype and product development components through precision CNC machining and 3D printing.

Backed by more than 76,738 machining quotations annually, we work with over 200 materials, from aluminum and plastics to difficult-to-machine alloys.

Leveraging our decades of machining expertise, we proactively strive to help customers reduce costs and improve manufacturability through design optimization and data-driven manufacturing recommendations.

With quotations available within one day, we support everyone from design and development teams at leading manufacturers to the next generation of engineers participating in Formula SAE and robotics competitions.

Areas of Expertise: Precision CNC Machining, Industrial 3D Printing, Value Engineering (VE)

Track Record: •76,738 quotations annually • 200+ materials • Quotes in one day

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