In the field of precision manufacturing. Various precision parts, such as those for medical devices, high-end instruments, and energy equipment. Demand stringent dimensional accuracy, surface quality, and material properties.
However. Traditional machining and some casting processes cannot meet these demands. For example, high machining costs, numerous shape restrictions, and complex surface treatments. This severely impacts production efficiency.
Investment casting stands out due to its unique technical characteristics. Lost wax casting, a mature precision molding process, precisely addresses these challenges. QD is a leading manufacturer and supplier specializing in investment casting. Providing customers with high-performance and highly reliable precision casting solutions.

Core technical advantages of investment casting process
- Excellent dimensional accuracy and geometric repeatability
Investment casting enables near-net-shape production. Significantly reducing subsequent machining allowances. And significantly lowering machining costs and time. It is suitable for mass production of parts requiring high dimensional consistency.
- Excellent casting surface quality
The ceramic mold shell requires no complex pre-treatment. And can achieve a high degree of finish. This reduces or even eliminates the need for rough polishing. Significantly shortening production cycles. It is ideal for applications requiring stringent surface quality requirements. Such as leak-proofing fluid seals.
- Excellent Complex Structure Forming Capabilities
Investment casting virtually transcends geometric constraints. Whether it’s complex cavities or ultra-thin-wall castings. They can be molded in a single pass. This enables highly integrated product designs. Reduces the number of parts and assembly steps. And improves structural integrity and operational reliability.
- Broad Material Compatibility
Investment casting offers exceptional material compatibility. Encompassing a wide range of materials. Including carbon steel, stainless steel, alloy steel, cobalt-based alloys, aluminum alloys, and copper alloys. This allows customers to flexibly select materials based on their specific application conditions. QD also provides professional material selection support to help customers precisely match their performance requirements.
- Economical and consistent for small and medium-sized batches
Wax molds are reusable. And the castings offer highly consistent dimensions and performance. This reduces customers’ batch product management risks. And avoids assembly or performance issues caused by individual differences.

QD Casting: Analysis of Professional Investment Casting Capabilities
Capability Category | Core Advantages | Value to Customers |
---|---|---|
Process Technology and Engineering Experience | Over 20 years of investment casting experience. Meticulous control over key processes such as wax pattern preparation, shell making, melting and pouring, and post – treatment. | Ensure process stability and reproducibility. Control the quality of castings from the source. |
Equipment and Material System | Adopt high – precision molds/3D – printed wax pattern technology, silica sol shell – making process, and precision melting equipment. Strictly select raw material suppliers. | Ensure the accuracy of the initial model, the quality of the shell, and the purity of the alloy. Provide one – stop delivery. |
Strict Quality Control System | Full – process inspection and testing. Implement the ISO 9001:2015 system. Equipped with a professional quality inspection team and equipment. | Enable full – process traceability of products. Support quality conclusions with data. Reduce quality risks. |
Engineering Services and Customization Capability | Intervene in the design stage to provide optimization suggestions. Skilled in handling ultra – thin – walled, complex – structured, and high – precision parts. Respond quickly to needs. | Improve castability and yield. Solve the manufacturing difficulties of complex parts. Accelerate project implementation. |
Reliability and Efficiency of Source Factory | Vertically integrate core production links. Stable supply chain management. | Controllable quality at the source. Optimize the cost structure. Ensure on – time order delivery. |
The Value of Partnering with QD
Technical Reliability: Proven processes + a strict quality control system. Provides a solid guarantee for high-performance, highly consistent castings.
Cost Optimization: Near-net-shape molding reduces machining waste. Source production eliminates intermediate steps. High yields reduce rework costs.
Simplified Supply Chain: One-stop service from drawing to finished product. Eliminate the hassle of multiple links, allowing customers to focus on their core business and improve management efficiency.
Risk Reduction: Stable quality and delivery capabilities. Effectively mitigate the risk of supply chain disruptions and product failures.
Engineering Support: A team of professional engineers provides comprehensive support throughout the entire process. Provide technical support from design optimization to production implementation.

Process suitability and professional consultation
Investment casting isn’t a one-size-fits-all process. It’s particularly well-suited for three types of parts: small- to medium-volume production parts, core components requiring high precision, and high-value-added products made from complex shapes or specialized materials. However, for high-volume parts with simple structures and low precision requirements, processes like die casting and sand casting may offer more cost advantages.
To help customers choose the right process, QD’s team of professional engineers offers a free preliminary evaluation service. Simply provide a part drawing or 3D model, and we’ll provide expert advice.
Investment casting is characterized by high precision, excellent surface finish, and strong adaptability. QD is an expert in investment casting, with solid process technology and rigorous quality control.
If you are looking for a foundry for precision parts, please contact QD. We provide precision manufacturing solutions that give you peace of mind and confidence.
FAQ
1. What types of precision parts are best suited for investment casting?
Investment casting is particularly suitable for high-value-added parts produced in small to medium batches, requiring high dimensional accuracy, complex shapes, or using specialized alloys. Examples include core components of medical devices and transmission parts for high-end instruments.
2. What is the surface quality of investment-cast parts? Can polishing be eliminated?
Investment casting uses a ceramic shell mold. This produces a fine surface. For most parts requiring moderate surface finish, rough polishing can be reduced or even eliminated. Significantly shortening production cycles.
3. Is investment casting cost-effective for small- to medium-volume production?
Yes. Investment casting wax molds are reusable. And castings have high consistency in size and properties. This can reduce subsequent processing costs.
4. What quality control measures does QD take for investment casting?
QD implements full-process quality control. Including three-dimensional coordinate measurement of wax pattern dimensions, shell quality inspection, non-destructive testing of castings, and physical and chemical property testing. We are equipped with professional quality inspection equipment and team. Ensure full product traceability.
5. How can I determine if my part is suitable for investment casting? Can I get a free consultation?
You can make a preliminary assessment based on the part’s batch size, precision requirements, structural complexity, and material properties. QD offers a free preliminary process assessment service. Simply provide a part drawing or 3D model, and our engineers will provide the optimal process recommendations based on technical feasibility and cost-effectiveness analysis.