Yuhas Tooling & Machining, Inc.

Milpitas CNC machine shop with over thirty-eight years in the industry, running prototype to production work for semiconductor, medical and aerospace customers.

Capabilities

• CNC milling
• CNC turning
• Assembly
• Lapping
• Grinding
• Broaching
• Plating
• Heat treating

Request a quote

To request a quote from this shop, use the Request a Quote form. Tell us the part, material, quantity and deadline, and we will pass your request to the shop.

CNC Milling, Grinding and Finishing in Milpitas at Yuhas Tooling & Machining

A machined part is often not finished when it comes off the mill. It may need grinding for flatness, lapping for a mirror surface, heat treating for hardness or plating for protection. Yuhas Tooling & Machining, Inc. is a Milpitas CNC machine shop listed here with more than thirty-eight years in the industry, running prototype to production work for semiconductor, medical and aerospace customers, with CNC milling, CNC turning, assembly, lapping, grinding, broaching, plating and heat treating. This page explains these follow-on processes and how to describe a part that needs them.

The sequence matters

When a part needs several processes, the order affects the result. A common pattern is to machine close to final size, heat treat to harden the metal, then grind or lap to the final dimension. Heat treating can move metal slightly, so the last precision cuts usually come after it. Plating adds a thin layer, so surfaces that must hold a size may be machined to allow for it. A shop that lists many of these processes can think about the whole sequence.

Milling and turning

Milling makes the main shapes of blocks, plates and housings. Turning makes round parts such as shafts and bushings. Together, they produce the base geometry that the later steps refine.

Grinding and lapping

Grinding uses an abrasive wheel to remove small amounts of material and reach tight size and flat or round surfaces. Lapping is a finer step that uses an abrasive to produce very smooth and flat surfaces. Both are used when a surface must seal, slide or sit flat against another part. Say which surfaces need these steps and what finish you need.

Broaching

Broaching cuts shapes such as keyways and internal splines by pushing or pulling a toothed tool through a hole. It is quick and consistent for features that are hard to reach with a mill.

Heat treating and plating

Heat treating changes hardness and strength. Plating adds a surface layer that can resist corrosion or wear. The listing names both. Mention the heat treat spec or plating type you need, and the hardness or thickness you expect. If you are not sure, describe what the part must survive in use.

Assembly

The listing also names assembly, so a request can include building a small group of parts into a finished piece. Provide an assembly drawing and any fit or torque requirements.

Prototype to production

The listing says the shop runs prototype to production work. For a new design, a small first lot lets you confirm the process before a larger order. For a mature part, say how often you reorder.

Industries mentioned

The listing names semiconductor, medical and aerospace customers. Each field has its own documentation habits, so list the paperwork you need, such as certificates or inspection data.

What to put in an RFQ

• Drawing with revision
• Material and any spec
• Heat treat, plating or grinding callouts
• Quantity and reorder plans
• Critical dimensions and surface finish
• Delivery date

The value of a long track record

A business with more than thirty-eight years behind it, as listed, has had time to learn many part types. Your own sample or first article is still the best proof.

Questions worth asking about multi-step parts

When a part passes through several processes, ask who is responsible for the schedule, what happens if a step fails inspection, and how the final dimensions are verified. Also ask how many extra pieces to order, since heat treating and plating can occasionally cause a part to be scrapped. A small buffer in the quantity can keep your delivery date safe.

When you are ready to ask for pricing, Request a Quote through Machining Marketplace and we will pass your request to Yuhas Tooling & Machining in Milpitas.

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