Process Introduction
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Service industryLiquid measurement and control for oil & gas, food, chemicals, and moreWe have been specializing in precision investment casting of parts for the measurement and control industry for nearly 40 years, offering efficient and highly competitive one-stop solutions that meet the evolving needs of global industry leaders.
High-speed centrifugeThe centrifuge industry demands high product accuracy, superior performance, and complex structural designs. Haosen not only provides customers with manufacturing services but also offers a one-stop solution that includes comprehensive inspections such as dynamic balancing.
Food machineryThe surface of food machinery products must meet the Ra0.4 mirror finish standard. These products are challenging to polish, and after polishing, they must pass a 48-hour neutral salt spray test. Haosen’s customers can rely on us to provide the entire process in-house to meet their requirements.
AerospaceHaosen offers a variety of casting processes and precision machining technologies to produce aerospace components that meet industry standards and customer requirements. We also provide a full range of inspection services to ensure product quality. By offering customers a one-stop solution, we can guarantee competitive product pricing, timely delivery, and high-quality products.
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Manufacturing process3D printing3D printing is used in new product development, shortening the R&D cycle and eliminating the need for mold making, thereby ensuring timely delivery for Haosen Precision Casting’s new product development.
Mold manufacturingThe Mold Department is the first step in our company’s product manufacturing process. Currently, the department has 27 employees who are proficient in a full range of processes, including design, process engineering, turning, milling, grinding, CNC machining, three-coordinate measurement, electrical discharge machining (EDM), wire-cutting, precision boring, and fitting work. This enables us to comprehensively handle the entire process—from design to production and assembly of molds and tooling. Our design and machining personnel are highly experienced, each with over 10 years of industry experience. The products we manufacture and produce include: precision casting molds, small stamping dies, rubber molds, plastic molds, part-processing fixtures, measuring tools, as well as molds and tooling for aerospace-related components.
Investment castingInvestment casting is one of the most sophisticated casting processes. While producing parts with intricate structures, it also achieves high dimensional accuracy and excellent surface quality.
Precision machiningPrecision machining encompasses processes such as turning, milling, boring, drilling, electrical discharge machining (EDM), engraving, grinding, and other techniques. It is a process in which material is removed from a workpiece through mechanical operations to produce precision parts that meet stringent dimensional accuracy, geometric tolerances, and high surface quality as specified in the drawings.
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Precision machining
Precision machining
Precision machining encompasses processes such as turning, milling, boring, drilling, electrical discharge machining (EDM), engraving, grinding, and other techniques. It is the process of removing material from a workpiece through mechanical machining to produce precision parts that meet stringent dimensional accuracy, geometric tolerances, and high surface quality as specified in the drawings. Precision machining typically requires highly accurate machine tools, advanced processing methods, and CNC programming. Precision-machined parts are usually supplied to original equipment manufacturers and system integrators, and the finished parts find applications in a wide range of end-market sectors.
Flowchart of the Main Precision Machining Processes
Equipment
We use high-quality machining equipment to meet the needs of world-class customers. We provide precision machining solutions for a wide range of industries, including oil & gas, healthcare, automotive, and defense.
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Turning • Machining range: 0–Ø580×1,279 mm • Device accuracy: ±0.005 mm • Quantity: 40+ • Brands: Mazak, Feeler, and Takisawa |
Turning and Milling Center • Processing range: 0–Ø120×310 mm • Device accuracy: ±0.01 mm • Quantity: 10+ • Brands: Mazak, Takisawa |
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Vertical Milling Center • Processing range: 1,235 × 618 × 685 mm • Positioning accuracy: ±0.01 mm • Spindle speed: 10,000 rpm • Quantity: 40+ • Brands: Mazak, Feeler and Takisawa, Neway |
Milling and Turning Composite Machining Center • Type: INTEGREX j-200S • Processing range: Φ500 × Φ530 × 910 mm • Number of spindles: 5 • Milling spindle speed: 15,000 rpm • C-axis: C2 axis with 0.001-degree resolution / non-interlocked • Quantity: 2+ • Brand: Mazak |
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Centerless grinding • Machining range: 0–Ø50 × 405 mm • Roundness: 0.005 mm • Flatness: 0.005 mm |
External cylindrical grinder • Processing range: 0–Ø350×600 mm • Roundness: 0.005 mm • Flatness: 0.005 mm |
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Deburring • Abrasive flow deburring • Electrochemical deburring • Dedicated machine for deburring |
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Materials
Raw materials for precision machined parts
The materials primarily include castings (stainless steel, copper parts), bars (hot-rolled, cold-rolled, polished), pipes, hexagonal profiles, and other specialized profiles.
Stainless steel
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Precipitation-hardening stainless steel • 17-4PH • 15-5PHand more |
Duplex stainless steel • 1.4462 (2205) |
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Carbon steel • WCB • LCC • ZG200-400 |
Alloy steel • C22 • CX2MW • CW6M • CW12MW |
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Heat-resistant alloy • ZG03Cr19Ni11 • 1.4470 • ZG35CrMnSi • CA15 |
Aluminum alloy • 2024-T4 • 6061-T6/T6511 • 7075-T6 and higher |
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Copper alloy • C87500 |
High-temperature alloy • K4169 • K640 • K418B • K3625 • CW6MC • K4202 • GH5188 |
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Precision Machining Processes and Capabilities
We have earned customer recognition for our high-quality products and services, reasonable costs, and timely delivery. We are certified according to ISO 9001, ISO/TS 16949, ISO 14001, and VB OHSAS 18001 standards. We possess flexible and agile production capabilities, enabling us to meet order volumes ranging from just a few pieces to hundreds of thousands of units.
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Process
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Type
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Size range
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Turning
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CNC
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0–Ø580×1,279mm
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Turning and Milling Center
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CNC system
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0–Ø120×310 mm
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Vertical milling
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CNC system
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1,235 × 618 × 685 mm
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Milling and Turning Hybrid Machining Center
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CNC system
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Φ500 * Φ530 * 910mm
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Boring and drilling
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Boring machine
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Φ0.8–Φ50 × 400 mm
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Grinding processing
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Flat grinding
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610×305×450 mm
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Grinding processing
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CNC external cylindrical grinding
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0–Ø350×600 mm
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Grinding processing
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Internal cylindrical grinding
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0–Ø50×405 mm
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Address: No. 28, Lantian Road, National Aviation High-Tech Industrial Base, Yanliang District, Xi'an City, Shaanxi Province
