Investment Casting
Investment Casting, also known as precision casting or lost-wax casting, is a time-tested manufacturing process that has evolved alongside modern technologies like 3D printing and advanced automation.
Renowned for its ability to produce highly detailed, dimensionally accurate and complex metal components, investment casting is the preferred solution for industries where performance and precision matter.
The process begins by creating a replica (or pattern) of the final part. The pattern is typically made from wax using injection moulding or, increasingly, via 3D printing, which eliminates the need for costly tooling and shortens development timelines. Once formed, the pattern is repeatedly coated in ceramic slurry to build a robust shell. After the shell hardens, the pattern material is removed, leaving a cavity that precisely mirrors the original design.
The shell is then preheated and molten metal is poured into it. Once solidified and cooled, the ceramic shell is removed, revealing a near-net-shape component with an exceptional surface finish and fine, intricate details. Being so true to the original shape minimises the need for extensive post-processing and machining.
Unlock the advantages of a casting process built for precision, versatility, and reliability.
Wide Part Size Range
Our investment casting process can be used for components weighing several grams to up to 40kg (envelope maximum 400 x 400 x 400 mm).
Design Freedom
It is ideal for complex geometries, undercuts, thin walls, lightweight designs and intricate features that are difficult or impossible with other methods.
High Surface Detail
This technique produces castings with exceptional surface finishes and the ability to replicate fine markings, logos, and text directly in the mould. The surface finish obtainable is approximately equivalent to Ra 1.6-3.2 micrometres(µm). This improves the appearance of the component and reduces the costs of further surface improvements.
Dimensional Accuracy
Investment casting maintains tight tolerances with impressive repeatability across production runs.
Alloy Flexibility
Compatible with a wide variety of metals and specialty alloys, investment casting can cast alloys which are difficult and more expensive to machine in any form.
Inventory and Supply Chain Flexibility
It enables leaner inventory strategies by supporting just-in-time production and reducing the need for holding large volumes of parts.
Suits all volume requirements
A single unit to thousands or millions of components.
In casting, the term ‘investment’ refers not to the modern meaning of financial outlay, but to the centuries-old process of ‘investing’ – or coating – the pattern in ceramic material to create the mould. This technique can handle parts ranging from a few grams to several kilograms, and is particularly effective for the high-performance alloys used in the aerospace, automotive, medical and energy sectors.
By combining traditional craftsmanship with cutting-edge technology, investment casting delivers high-strength, lightweight components with repeatable precision, making it a key process in modern manufacturing environments that demand flexibility, efficiency, and uncompromising quality.
Automation is integrated throughout Hycast’s manufacturing processes to enhance control, consistency and lead time reliability. By combining advanced technologies with engineering expertise, we deliver repeatable, high-quality outcomes across every stage of production.
Automated systems reduce variability and human error while providing real-time monitoring and full traceability from quotation through to final component. This enables efficient production cycles, scalable output and shorter lead times without compromising quality.
Importantly, automation complements our skilled workforce — allowing our team to focus on technical expertise, process improvement and value-added work.
Services
For us, ‘good enough’ is never good enough. Our commitment to continuous improvement in precision casting blends modern technological advances – including robotics and 3D printing – with traditional draftsmanship, transforming time honoured practices into modern manufacturing excellence.
Stay informed with the latest insights, updates, and developments in investment casting.
