Design

PRODUCT DESIGN AND DEVELOPMENT

From requirement to production-ready solution.

A dedicated design and process-engineering team supports product development from the initial requirement through prototyping, validation and repeat production. Geometry, material composition, casting methodology, tooling, machining and testing are developed together to create standard and customised solutions around the customer’s application.

AT A GLANCE

The expertise behind every development

Ten connected disciplines, one development process.

Product Development

AutoCAD

2D Drafting

3D

Component & Assembly Modelling

Simulation

Casting Flow & Solidification

Material

Chemistry Development

Process

Casting Methodology

PATTERN

Design & Development

Tooling

Custom Cutters & Fixtures

Prototyping

Testing & Refinement

Global

Specialist Design Partnerships

DESIGN BASIS

Design begins with what the product must do

Every development begins with the application. Loads, operating conditions, critical interfaces, service life and production volumes are translated into measurable design and acceptance requirements before the production route is developed.

Function and Loading

Static, dynamic, impact and fatigue loads are considered according to the component and its operating environment.

Strength and Weight

Geometry, wall sections and material properties are balanced to achieve the required strength without adding unnecessary weight.

Wear and Service Conditions

Material and process decisions consider abrasion, impact, temperature, corrosion and other application-specific conditions.

Dimensions and Interfaces

Critical dimensions, datums, clearances and mating surfaces are defined to support accurate fitment within the final assembly.

Production Requirements

Expected volumes, delivery timelines, repeatability and production economics are incorporated into the development process.

DIGITAL ENGINEERING

Identify risk before production begins

2D Engineering

AutoCAD-based drawings define component geometry, dimensions, tolerances, material requirements and production information.

3D Modelling

Component and assembly models help evaluate geometry, fitment and critical interfaces before tooling is developed.

Casting Simulation

Digital filling and solidification studies support the development of a sound and efficient casting route.

MATERIAL ENGINEERING

Developing the material and the method together

Material composition and casting methodology are developed around the properties required from the finished component. Chemistry, mould behaviour, solidification and subsequent treatment are considered as parts of one connected process.

Chemistry Development

Chemical composition can be developed within applicable specifications to achieve the required mechanical and service properties. Alloying elements such as nickel and molybdenum may be introduced where the application requires improved strength, toughness, hardenability or wear resistance.

Gating and Risering

Feeding paths, risers and gating systems are developed around the component geometry to promote controlled mould filling and directional solidification.

Geometry and Wall Sections

Wall thicknesses, transitions, fillets and machining allowances are reviewed to balance strength, weight, casting soundness and material utilisation.

Process Optimisation

Simulation, trial results and production feedback are used to reduce defects, improve casting yield and establish more consistent process parameters.

PRODUCTION ENGINEERING

Control the details that shape the product

Pattern Development

Wooden and aluminium pattern facilities support the development of tooling around the component geometry, moulding process and required dimensional allowances. Direct coordination between design and pattern development enables faster revisions and greater control over critical sections.

Custom Tooling

Component-specific cutters, fixtures and workholding systems are developed to improve machining access, stability and cycle time.

Machining Development

Datums, machining sequences and inspection stages are planned around the component's critical dimensions and mating interfaces. Multi-axis and double-head CNC systems support complex machining in fewer setups, with drawing-specific tolerances and surface roughness down to Ra 3 µm.

PROTOTYPING AND VALIDATION

Develop. Test. Improve. Repeat.

The first attempt is not treated as the finished solution. Prototypes move through repeated cycles of production, inspection, testing and improvement until the component satisfies the agreed functional, dimensional and quality requirements of the customer.

Prototype Production

Initial components are produced to verify the design, material behaviour and practical production route.

Stage-Wise Testing

Chemical, physical, metallurgical and dimensional checks are carried out at relevant stages to identify variations early.

Customer Validation

Prototype results are reviewed against the customer's drawings, operating requirements and acceptance criteria.

Design & Process Refinement

Findings are used to adjust geometry, chemistry, casting methodology, patterns, tooling, heat treatment or machining parameters.

Approved Production Route

Once the required outcome is achieved, the drawings, chemistry, methoding, treatment cycle, machining programme and inspection plan are standardised for repeat production.

PROVEN APPLICATION

From operating requirements to complete solutions

Our experience includes working with specialist partners to develop railway trackwork around defined speed, axle-load and layout requirements. These projects require geometry, material behaviour, component interfaces and production controls to function together as one dependable system.

This experience demonstrates a broader ability to understand complex operating requirements and translate them into producible, validated solutions — an approach that can be applied to components and assemblies across defence, automotive, renewable energy and heavy engineering.

SPECIALIST COLLABORATION

Global knowledge. Practical application.

Established relationships with international engineering and technology partners provide access to specialist knowledge when a project requires it. Their expertise complements our design and production experience, helping develop and validate solutions against globally informed practices.

Domain Expertise

Relevant specialists can be brought into a project according to its technical and industry-specific requirements.

Design Validation

Collaborative reviews provide additional technical scrutiny for complex products, systems and operating conditions.

Global Requirements

Designs can be aligned with applicable EN, ISO, customer and regional standards without losing sight of local operating conditions or production economics.

Knowledge Transfer

Continued interaction with technology partners strengthens internal practices and supports the adoption of evolving methods and systems.

INTERFACE CONTRO

Every component aligned to the final solution

Component suppliers are aligned with current drawings, material specifications, quality plans and interface requirements. Qualification, technical communication and controlled change management help ensure that externally sourced components meet the same requirements as the complete product.

Technical Alignment

Drawings, dimensions and fitment requirements are communicated across all connected components.

Supplier Qualification

Suppliers and their processes are assessed against the technical, quality and traceability needs of the project.

Technology Updates

Technical partners are kept aligned with approved changes in designs, components and production systems.

Change Control

Material, process and design changes are reviewed before being introduced into regular supply.

Let’s Build What Comes Next

Whether you need an established product or a customised casting, Cal Group can support the journey from design and process development to manufacturing, testing and dispatch.

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