Custom Aluminum Iron Brass 40Cr Steel Lost-Wax Investment Casting with CNC Machining

Let’s define your requirement

Send a product link, drawing or short brief. We’ll work through the details with you.

  1. Confirm the specificationGrade or model, size and intended use.
  2. Define your orderQuantity, finish or configuration, and samples.
  3. Agree the quotation scopeIncluded work, key checks and delivery needs.
View the enquiry checklist
Product description
  • Surface Finish
    Passivated , Polished
    Alloy Grade
    WCB
  • Item
    Custom Made Metal Aluminium Iron Brass Steel Lost Wax Casting
  • Material
    G35, G45, WCB, WCA, WCC, ISO 340-550, etc. As customer request
    Manufacturing Process
    Investment casting, option Lost wax casting
  • Casting Tolerance
    CT4-8 for high quality chinese precise lathe parts
    Machining Process
    CNC Machining/ Lathing/ Milling/ Turning/ Boring/ Drilling etc.
  • Machining Tolearnce
    Up to IT7, Ra 0.8~3.2 , according to customer requirement
    Surface Treatment
    Surface Passivatin, Polish. As customer requests.
  • Package
    Multiplayer wooden box/pallet, with big plastic bag inside
    Lead Time
    about 50 days for brass lost wax casting
  • Service
    Supply metal parts solution as per customer's drawings/ samples

Custom metal-part inquiries cover aluminum, iron, brass and 40Cr steel, using investment casting with a lost-wax option and machining work. Customer drawings or samples define the starting input, with material, precision references and surface requests assigned to the selected component.

Material references and the actual grade

Material references include G35, G45, WCB, WCA, WCC and ISO 340-550, subject to customer requirements. Identify the exact material and applicable standard for the part being discussed. These references remain individual selection terms and should not be treated as automatically equivalent grades.

Investment casting and CNC work

The manufacturing direction combines an investment-casting inquiry, a lost-wax option and actual machining capabilities. CNC machining, lathing, turning, milling, boring and drilling are available work directions. Allocate the required operations to the drawing's geometry and surfaces instead of assigning every method to every metal part.

CT4–CT8, up to IT7 and the Ra reference

CT4–CT8 is a casting-tolerance reference for a selected lathe-part inquiry, while machining references include up to IT7 and Ra 0.8–3.2. Agree which dimensions and surfaces each reference applies to. The roughness unit and measurement scope also need confirmation before the Ra value becomes part of the component's acceptance.

Passivation or polishing by material and area

Passivation and polishing are surface-treatment directions that can be discussed against the chosen material and customer request. Define the areas and required finished condition for the actual component. This connects the surface work to its geometry and intended use without assuming an identical treatment for all material directions.

Customer drawings and sample inputs

A customer's drawing or sample provides the design input for the metal-part solution. Explain the component's function, interfaces and operating conditions alongside the selected grade and casting/CNC requirements. The inquiry then establishes a specific manufacturing and acceptance scope rather than relying on broad material and precision terms alone.

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