CNC Machining Metal Parts

Precision CNC machining of metal parts

We offer precision CNC machining for metal parts, combining milling and lathe turning to produce accurate components with a smooth finish. This shaft was machined in stainless steel for an auto parts manufacturer, with CNC machining and lathe machining, no heat treatment, and inspection to the customer's quality request.

Materials

The project data lists 316 stainless steel and AISI 420 stainless. 316 offers excellent corrosion resistance; 420 is a hardenable stainless used where wear resistance matters. We machine both regularly, along with aluminium, carbon and tool steels.

How we machine turned-and-milled parts

• Lathe turning for diameters, shoulders and threads, held concentric in one setup where possible.
• CNC milling for flats, slots and cross holes.
• Grinding when diameters need tighter tolerance or better finish than turning gives.
• Inspection with micrometers, gauges and CMM according to the drawing.

A machining supplier that understands assemblies

Because we also build molds and molding equipment parts, our machinists are used to parts that must fit with others. We check fits and concentricity, not just individual dimensions, and we can supply matched sets when your assembly requires them.

How a project like this works

• Tell us what you need – the mold only, molded parts, or both, and your estimated annual volume.
• Send drawings – STEP, IGES, STL, DWG or PDF, or a sample. We sign off moldability in a DFM review.
• Quotation – tooling price, part price and a schedule, with steel, cavities and runner proposed.
• Mold design approval – you approve the 3D mold design before steel is cut.
• T1 samples + FAI report – production or mold shipment starts after your approval.

Shipping molds and parts

• Molds are cleaned, rust-protected, marked and checked against a shipment checklist: cooling circuits, sprue, locating ring, ejection and support pillars.
• Molds ship with drawings, a spare-parts list and the T1 process sheet.
• Parts are packed to your packing instruction and inspected before shipment.
• We ship to customers in Europe, the USA and Asia.

After-sales

Our after-sales team supports mold maintenance and modifications remotely and can supply spare inserts. Contact customerservice@precisemoulds.com.