THE ADVANTAGES OF FORGING
✓
✓
✓
✓
✓
MATERIALS AND TECHNICAL CAPABILITIES
VALVES & PUMPS
When is forging the right choice?
Forging should be considered when the component must withstand repeated loads, impact or high stresses. Deforming the metal makes it possible to orient its grain flow and, with the correct heat cycle, obtain the required properties. The benefit depends, however, on the alloy, the shape and the direction of the loads. Complex undercuts, closed cavities and very thin walls may make another technology preferable or require additional machining. EDR compares drawing, material and volumes to assess whether hot stamping offers a suitable balance between performance, tooling and the cost of the finished component.
What tolerances can be achieved on a forged part?
A distinction must be made between dimensions obtained directly from stamping and those produced by subsequent machining. In hot stamping, shrinkage, die wear and geometry affect the precision of the blank. Bearing seats, sealing surfaces, threads and fits may require CNC finishing or grinding. For this reason the drawing must specify tolerances, datums and roughness on functional surfaces. EDR assesses the machining allowance and the sequence of operations before sampling, without applying a single tolerance to the whole part.
What batch sizes justify a die?
The economically suitable batch depends on die complexity, material, weight and final machining. Expected demand over time should also be factored into the cost: a small initial order may be part of a recurring series. EDR assesses the tooling investment together with quantities and delivery frequency. Minimum quantity and lead times are defined in the quotation; sampling serves to verify the component before the series starts and is not a standalone prototyping service.
Which materials are suitable for hot stamping?
Carbon, alloy and stainless steels are used, as well as aluminium and copper alloys suitable for deformation. Choosing the grade requires checking forgeability, performance, treatments and availability at the selected manufacturer.
What checks are provided for stressed parts?
In addition to dimensional checks, hardness and tensile tests and non-destructive testing may be requested. Method, sampling and acceptance criteria depend on the material and function of the part and must be agreed before production.
Do dedicated dies remain the customer's property?
Dedicated tooling remains the customer's property. EDR coordinates its custody and maintenance at the partner. Die identification, expected life and transfer conditions must be defined in the supply agreement.
Are treatments and CNC finishing integrated?
The forged part can be completed with heat treatments and machining on functional surfaces. The sequence depends on the alloy and the required dimensions: it must be defined also taking into account the dimensional changes the treatments may introduce.
What is needed to estimate production and delivery?
We need an up-to-date drawing, material, quantity and required date. Dies, sampling, treatments and inspections affect lead times. EDR coordinates the manufacturer and logistics by defining the supply schedule.
REQUEST A TECHNICAL ANALYSIS