
Manufacture of aluminium castings using the permanent mould casting process, including tool making and downstream machining

Horst Uhlig GmbH
NeuenradeNew on Amplifa
About Horst Uhlig GmbH
Horst Uhlig GmbH from Neuenrade specialises in the aluminium permanent mould casting (gravity die casting) manufacturing process. Its range of services includes foundry consulting, the design and manufacture of the casting tools (permanent moulds made of cast iron or steel), series production of castings and their extensive downstream machining up to the ready-to-install component. Permanent mould casting is a gravity casting process in which the mould is filled manually or with automatic assistance; the process produces dimensionally accurate castings with good surface quality, wall thicknesses from 3.0 mm and machining allowances of 1.0 to 1.5 mm on fitting and sealing surfaces. By default, the company casts the alloys EN AC-43000 (AlSi10Mg(a)), EN AC-44200 (AlSi12(a)), EN AC-47000 (AlSi12(Cu)) and PERALUMAN 36 (AlMg3Si); other common alloys in accordance with EN AC-40000 ff. are available on request. Permanent mould castings, with a suitable choice of alloy, can be heat treated without restriction, are weldable and can be anodised. Owing to the cost of the permanent moulds, the process is suitable for medium and large series; the output of a permanent mould is approximately 20,000 castings.
- Site
- Neuenrade
- Processes
- Aluminium permanent mould casting (gravity casting process, manually or with automatic assistance), Wall thicknesses from 3.0 mm, machining allowances 1.0–1.5 mm on fitting and sealing surfaces, Foundry consulting, Design and manufacture of casting tools (permanent moulds), Series production of castings, Extensive downstream machining of the castings up to the ready-to-install component, Heat treatment of castings (permanent mould castings can be heat treated without restriction), Anodic oxidation (permanent mould castings can be anodised with suitable alloys)
- Materials
- EN AC-43000 / AlSi10Mg(a), EN AC-44200 / AlSi12(a), EN AC-47000 / AlSi12(Cu), PERALUMAN 36 / AlMg3Si, Cast iron (for permanent moulds), Steel (for permanent moulds), Permanent moulds made of cast iron or steel
- Certificates
- DIN/EN standards for dimensional accuracy
- 01
Foundry consulting
- 02
Design and manufacture of the casting tools (permanent moulds)
- 03
Aluminium permanent mould casting series production
- 04
Downstream machining up to the ready-to-install component
Materials and Processes
EN AC-43000 / AlSi10Mg(a)
Standard alloy for aluminium permanent mould castings.
EN AC-44200 / AlSi12(a)
Seawater-resistant standard alloy for permanent mould casting.
EN AC-47000 / AlSi12(Cu)
Copper-containing aluminium alloy for permanent mould casting.
PERALUMAN 36 / AlMg3Si
Aluminium alloy for heat-treatable and anodisable castings.
Permanent moulds made of cast iron or steel
Material of the permanent moulds for aluminium permanent mould casting.
Locations

Neuenrade
DEHeadquarters and foundry
- Lot size
- Medium and large series
- Materials
- Aluminium alloys EN AC-43000, EN AC-44200, EN AC-47000, PERALUMAN 36
- Permanent mould casting systems (gravity casting process, manually or with automatic assistance)
Components

Inside the production

Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Aluminium permanent mould casting (gravity casting process, manually or with automatic assistance)Casting | – | – | – | Medium series | EN AC-43000 (AlSi10Mg(a)), EN AC-44200 (AlSi12(a)), EN AC-47000 (AlSi12(Cu)), PERALUMAN 36 (AlMg3Si), Common alloys in accordance with EN AC-40000 ff. |
| Wall thicknesses from 3.0 mm, machining allowances 1.0–1.5 mm on fitting and sealing surfacesCasting | – | – | – | – | EN AC-43000 (AlSi10Mg(a)), EN AC-44200 (AlSi12(a)), EN AC-47000 (AlSi12(Cu)), PERALUMAN 36 (AlMg3Si) |
| Foundry consultingEngineering | – | – | – | – | – |
| Design and manufacture of casting tools (permanent moulds)Engineering | – | – | – | – | Cast iron, Steel |
| Series production of castingsCasting | – | – | – | Medium and large series | EN AC-43000 (AlSi10Mg(a)), EN AC-44200 (AlSi12(a)), EN AC-47000 (AlSi12(Cu)), PERALUMAN 36 (AlMg3Si) |
| Extensive downstream machining of the castings up to the ready-to-install componentMachining | – | – | – | – | Aluminium |
| Heat treatment of castings (permanent mould castings can be heat treated without restriction)Heat Treatment | – | – | – | – | Aluminium alloys (suitable EN AC alloys) |
| Anodic oxidation (permanent mould castings can be anodised with suitable alloys)Surface | – | – | – | – | Aluminium alloys (suitable EN AC alloys) |
Additional services
Quality
Dimensional accuracy is maintained in accordance with DIN and EN standards; the type and scope of the agreed inspections are specified in the contract.
| Evidence | Neuenrade |
|---|---|
| DIN/EN standards for dimensional accuracy |