The manufacturing process
From mechanical design to manufacture
A functional requirement or initial design provides direction but does not settle every production decision. Douna discusses the application, interfaces and critical features and considers the development required. Manufacturability and intended operations are included from the outset, so geometry, material and assembly choices can be assessed together.
A clearly defined delivery
We agree which development work is included, which information you provide and when the design is ready for the next stage. Required calculations, safety assessments, testing and documentation are discussed explicitly. The engineering scope can be defined separately or coordinated with production and assembly.
Capabilities and specifications
Does your product fit our capabilities?
Dimensions, material and critical features together determine the manufacturing route. Discuss the requirements for your component, assembly or machine.
- Dimensions and weight
- Assessed per workpiece
Geometry, workholding and access determine what is possible. Explore the available machines and discuss your workpiece.
- Accuracy and tolerances
- To agreed requirements
Specify critical dimensions and datums. Feasibility and inspection are assessed for your application.
In practice
Boiler test unit
- The requirement
- The existing method offered scope for improved efficiency and working conditions, but specific performance figures have not yet been validated.
- The work
- Douna designed and built the test unit based on the customer's requirements.
- The result
- A heating boiler test unit designed and built to the customer's requirements.
Technical expertise
The expertise behind the solution
These operations can form part of the agreed process. Your requirement determines the combination needed.
Mechanical assembly
Outsource mechanical assembly of components, modules or machines? Douna prepares interfaces, assembly sequence and inspections and carries out the agreed assembly and handover.
TIG welding for stainless steel assemblies
Outsource TIG welding for a stainless steel assembly. Douna combines welding, engineering and final inspection. Explore how TIG and spot welding complement each other in the fine-mesh canister project.
Large-part milling and turning
Outsource milling or turning of large workpieces? For large-part machining, Douna coordinates workholding, support, machine selection and inspection around the complete workpiece and its features.
CNC milling of metal components
Looking to outsource CNC milling? Douna assesses geometry, material, workholding and dimensional inspection in relation to the function of your metal component.
Frequently asked questions
Practical questions
Can I start without a complete design?
Yes, a functional description, sketch or reference can start the discussion. Function, constraints and acceptance criteria must be sufficiently clear before execution. We discuss which missing information is needed first.
Is engineering linked to production?
Technical development can connect to machining, welding and assembly. The stages Douna performs and the design or documentation delivered are agreed for each order.
What information helps with the initial discussion?
Describe the application and required function, and tell us which drawing, model or reference is available. Include quantities, schedule and required delivery. We discuss any further technical development needed.
Discuss your technical requirement with our specialists
Have a functional requirement, sketch or design? Discuss the application and required delivery. Together we determine the technical development needed.
+31 58 28 49 660info@douna.nl