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Capability

Casting and Forging Processes

We choose the process from the part, not from the equipment one factory happens to own. That is the main reason to work through a supply chain of more than thirty factories.

Casting and Forging Processes at Jianheng Metal partner factories

Overview

Casting and Forging Processes at Jianheng Metal

As a global metal parts supplier we need to meet the demands of customers in different industries and different regions. Facing diversified product requirements, we have organised different production casting processes to meet the needs of different customers. The current product technology covers most product areas, including cast iron, cast steel, non ferrous alloys and some special material metal parts.

The diversified casting process also covers parts of different sizes and weights, from a few grams to tens of tonnes. We continuously optimise the production process in order to provide the best value production solution.

We supply many products produced by forging as well. Open and closed die forging covers most kinds of products in carbon steel, alloy steel, aluminium and other materials. Rolled ring forging is used for ring parts in many steel grades, and cold rotary forging is used for small parts mainly in aluminium and copper alloy.

Process

Casting Processes

Vacuum Process at Jianheng Metal partner factories
Vacuum ProcessMedium and large parts needing good surface roughness, CT7 to CT9, up to 10 000 kg
Resin Sand Process at Jianheng Metal partner factories
Resin Sand ProcessMedium and large parts with high dimensional requirement, CT10 to CT11, 100 to 3000 kg
Sodium Silicate Sand at Jianheng Metal partner factories
Sodium Silicate SandSand system used where binder residue and shakeout behaviour matter
Shell Molding at Jianheng Metal partner factories
Shell MoldingSmall and medium parts with strict dimensional requirement, CT7 to CT9, up to 50 kg
Lost Foam Process at Jianheng Metal partner factories
Lost Foam ProcessSmall and medium parts with complex structure, CT7 to CT9, up to 100 kg
Green Sand Process at Jianheng Metal partner factories
Green Sand ProcessSmall and medium parts with low dimensional requirement, CT11 to CT14, 0.2 to 200 kg
Investment Casting at Jianheng Metal partner factories
Investment CastingSmall precision parts with fine surface finish and small machining allowance

Process

Forging and Forming

Open Die Forging at Jianheng Metal partner factories
Open Die ForgingCarbon steel, alloy steel, aluminium and special materials
Closed Die Forging at Jianheng Metal partner factories
Closed Die ForgingRepeat volume parts with better grain flow than casting
Rolled Ring Forging at Jianheng Metal partner factories
Rolled Ring ForgingRing parts in many kinds of steel
Cold Rotary Forging at Jianheng Metal partner factories
Cold Rotary ForgingSmall forgings mainly in aluminium and copper alloy
Cutting Machine at Jianheng Metal partner factories
Cutting MachineBlank cutting for forging and fabrication
Extrusion at Jianheng Metal partner factories
ExtrusionAluminium and other profile sections
Wire Forming at Jianheng Metal partner factories
Wire FormingFormed wire components

Reference

Process Selection and Piece Weight

ProcessBest Suited ForTolerancePiece Weight
Green sand processSmall and medium parts with low dimensional requirementCT11–CT140.2–200 kg
Resin sand processMedium and large parts with high dimensional requirementCT10–CT11100–3000 kg
Shell molding processSmall and medium parts with strict dimensional requirementCT7–CT9≤50 kg
Lost foam processSmall and medium parts with complex structureCT7–CT9≤100 kg
Vacuum processMedium and large parts needing good surface roughnessCT7–CT9≤10000 kg

FAQ

Questions About Casting and Forging Processes

How do you decide which casting process to use?
We choose the process based on casting type and requirement, so that the right process gives the right quality. Size, wall thickness, tolerance class, surface finish and annual quantity all feed into it. In some cases we also reduce production cost by changing the process for an existing part.
What tolerance can each process hold?
Green sand gives CT11 to CT14, resin sand CT10 to CT11, and shell moulding, lost foam and vacuum process CT7 to CT9. Tighter features are normally machined.
What is the largest casting you can produce?
The vacuum process handles parts up to about 10 000 kg per piece. Overall the range runs from a few grams to tens of tonnes depending on process and material.
Can changing the process reduce my cost?
Often yes. Producing the same casting by a different process gives different advantages. We analyse the part and the requirement, discuss the trade offs with you and then choose the best solution.
Do you make the tooling?
Yes. Pattern, core box and die tooling is quoted separately from the piece price and is held for your repeat orders.

Ask an Engineer About Your Part

Tell us the part, the material and the tolerance you need. We will confirm which process route fits and what it will cost.