Heat Treatment of Investment Castings | Uni Deritend
How Investment Casting Reduces Machining Costs
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November 11, 2025
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At Uni Deritend, innovation meets efficiency. Our advanced investment castingprocesses reduce machining costs by producing near-net-shape components that require minimal finishing, helping manufacturers save time, reduce material waste, and achieve consistent dimensional accuracy.
Why Uni Deritend’s Precision Casting Process Minimizes Waste, Saves Time, and Maximizes Value
The Traditional Challenge – Machining Costs in Manufacturing
Machining plays a vital role in achieving final dimensions, but excessive machining can inflate production costs and lead times. Conventional metal removal methods generate significant material waste—up to 60% of the raw billet in complex geometries. Investment casting transforms this equation by casting components closer to their final net or near-net shape, fundamentally demonstrating that investment casting reduces machining costs.
This approach reduces the amount of material that must be cut, ground, or milled. By minimising material waste and labour hours, investment casting reduces machining costs and shortens the route to a finished component.
The Investment Casting Advantage
Investment casting, also known as lost-wax casting, enables engineers to reproduce intricate designs with tight tolerances. Near-net-shape production reduces dependence on costly and time-consuming secondary machining while improving the manufacturing economics of complex parts.
By reducing the number of post-casting operations, the process supports design complexity while improving cost efficiency.
Key Advantages:
- Near-net shape: Produces components close to their final dimensions
- Reduced machining time: Requires fewer operations before assembly
- Lower tool wear: Reduces machine load and tool replacement frequency
- Less material waste: Minimises unnecessary material removal
At Uni Deritend, our foundry combines simulation, automation, and metallurgical control to produce castings that require only the necessary finishing operations.
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How Uni Deritend Optimizes Machining Reduction
Uni Deritend’s engineering process is built to minimize machining without compromising quality.
- Design for Manufacturability (DFM): We collaborate with clients early in the design stage to develop geometries suited to investment casting, reducing unnecessary machining.
- Simulation-driven casting: Advanced simulation helps predict metal flow, shrinkage, and cooling behaviour, supporting dimensional consistency.
- Near-net-shape casting: Wax patterns reproduce the intended component geometry, reducing the need for multiple machining stages.
- Precision machining integration: For critical tolerance zones, CNC finishing can be incorporated to combine casting efficiency with machining accuracy.
Investment Casting vs. CNC Machining – Cost Comparison
Parameter | Investment Casting | Traditional CNC Machining |
Material Utilization | 90–95% | 40–50% |
Cycle Time | 1 step (casting) | 5–6 operations |
Surface Finish (Ra) | 1.6–3.2 µm | 1.6–0.8 µm |
Setup Cost | Medium | High |
Overall Cost Efficiency | 30–50% savings | — |
By combining foundry precision with digital machining integration, Uni Deritend helps global manufacturers reduce machining time and lower per-part production costs.
When Machining Is Still Needed
Certain features like threaded holes, fine bores, or precise mating surfaces still require final machining.
However, investment casting ensures that these zones are the only ones machined, not the entire component.
This selective machining approach maximizes production efficiency while ensuring the performance reliability expected by industries like aerospace, defense, and oil & gas.
Industries Benefiting from Reduced Machining Costs
Investment casting plays a crucial cost-saving role in high-precision sectors such as:
- Aerospace: Engine brackets, turbine blades
- Automotive: Turbocharger housings, gearbox parts
- Oil & Gas: Valve components, impellers
- Defense: Weapon system housings, actuator bodies
- Industrial Equipment: Pump casings, manifolds
By minimizing post-processing, Uni Deritend ensures components are ready-to-assemble straight out of the foundry.
Sustainability Through Reduced Machining
Fewer machining operations can reduce energy consumption, coolant use, and material waste. This can improve material yield and lower the environmental impact associated with secondary processing.
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Advanced Manufacturing & Process Innovation
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