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Sand Casting Parts Series 6
Setting new standards for sand casting precision, our High-Accuracy Low-Defect Sand Casting Parts Series 6 delivers CT7-8 dimensional tolerance (ISO 8062) and a defect rate ≤0.3%, ideal for precision-critical components in aerospace, medical devices, and optical equipment. Cast from aluminum alloy (ASTM B26 Grade A356.2) and magnesium alloy (ASTM B199 AZ91D), these parts combine the cost-effectiveness of sand casting with near-precision performance.
Precision-Driven Casting
Dimensional Accuracy: CT7-8 tolerance (±0.1-0.2mm for 100mm features), achieved via CNC-machined metal patterns and automated mold alignment (error ≤0.05mm).
Defect Control:
Porosity ≤0.5% (metallographic analysis), enabled by vacuum-assisted sand casting and post-casting X-ray inspection (100% for critical features).
Lightweight Alloy Performance
Aluminum Alloys (A356.2):
Tensile strength 310MPa, elongation 8%, and T6 heat treatment for improved fatigue resistance (10⁷ cycles at 150MPa).
Magnesium Alloys (AZ91D):
Density 1.8g/cm³ (60% lighter than steel), with corrosion resistance enhanced by chromate conversion coating (ASTM B117, 500h salt spray).
Surface & Mechanical Quality
Fine Finish Options:
As-cast Ra ≤6.3μm (via zircon sand molds); CNC machining achievable to Ra ≤1.6μm for mating surfaces.
Mechanical Testing:
Tensile, impact, and hardness testing (ASTM E8, E23, E18) for each heat, with test coupons cast alongside production parts.
Design Flexibility
Wall Thickness: 3-30mm, supporting lightweight structures (e.g., aerospace brackets) and load-bearing components (e.g., medical device frames).
Feature Resolution: Successfully casts 0.5mm fillets and 1mm ribs, rare in sand casting, enabled by 3D-printed sand core technology.
Aerospace Ground Support:
Avionics brackets, camera mounts, and satellite components (AS9100D compliant), with dimensional stability ±0.05mm over 100mm.
Medical Devices:
Surgical instrument handles and imaging equipment frames (biocompatible coatings available, USP Class VI), meeting ISO 13485 standards.
Optical Equipment:
Telescope mounts and lens brackets, with low thermal expansion (aluminum: 23x10⁻⁶/°C, magnesium: 26x10⁻⁶/°C) for thermal stability.
Precision Sand Casting Innovation
Patented robotic pattern alignment system (CN 202330123456) reduces mold displacement by 70%, achieving CT7 tolerance in sand casting—industry-leading for the process.
Quality Assurance Rigor
100% CMM inspection (accuracy ±0.02mm) for critical dimensions and statistical process control (SPC) for mold-making, maintaining defect rate 80% lower than industry average.
Rapid Precision Prototyping
5-day turnaround for 3D-printed sand molds (MOQ 1pc), ideal for aerospace prototyping and medical device development.
Certification Excellence
Certified to AS9100D (aerospace), ISO 13485 (medical), and IATF 16949 (automotive), with material traceability to melt lot numbers and heat treatment records.
Setting new standards for sand casting precision, our High-Accuracy Low-Defect Sand Casting Parts Series 6 delivers CT7-8 dimensional tolerance (ISO 8062) and a defect rate ≤0.3%, ideal for precision-critical components in aerospace, medical devices, and optical equipment. Cast from aluminum alloy (ASTM B26 Grade A356.2) and magnesium alloy (ASTM B199 AZ91D), these parts combine the cost-effectiveness of sand casting with near-precision performance.
Precision-Driven Casting
Dimensional Accuracy: CT7-8 tolerance (±0.1-0.2mm for 100mm features), achieved via CNC-machined metal patterns and automated mold alignment (error ≤0.05mm).
Defect Control:
Porosity ≤0.5% (metallographic analysis), enabled by vacuum-assisted sand casting and post-casting X-ray inspection (100% for critical features).
Lightweight Alloy Performance
Aluminum Alloys (A356.2):
Tensile strength 310MPa, elongation 8%, and T6 heat treatment for improved fatigue resistance (10⁷ cycles at 150MPa).
Magnesium Alloys (AZ91D):
Density 1.8g/cm³ (60% lighter than steel), with corrosion resistance enhanced by chromate conversion coating (ASTM B117, 500h salt spray).
Surface & Mechanical Quality
Fine Finish Options:
As-cast Ra ≤6.3μm (via zircon sand molds); CNC machining achievable to Ra ≤1.6μm for mating surfaces.
Mechanical Testing:
Tensile, impact, and hardness testing (ASTM E8, E23, E18) for each heat, with test coupons cast alongside production parts.
Design Flexibility
Wall Thickness: 3-30mm, supporting lightweight structures (e.g., aerospace brackets) and load-bearing components (e.g., medical device frames).
Feature Resolution: Successfully casts 0.5mm fillets and 1mm ribs, rare in sand casting, enabled by 3D-printed sand core technology.
Aerospace Ground Support:
Avionics brackets, camera mounts, and satellite components (AS9100D compliant), with dimensional stability ±0.05mm over 100mm.
Medical Devices:
Surgical instrument handles and imaging equipment frames (biocompatible coatings available, USP Class VI), meeting ISO 13485 standards.
Optical Equipment:
Telescope mounts and lens brackets, with low thermal expansion (aluminum: 23x10⁻⁶/°C, magnesium: 26x10⁻⁶/°C) for thermal stability.
Precision Sand Casting Innovation
Patented robotic pattern alignment system (CN 202330123456) reduces mold displacement by 70%, achieving CT7 tolerance in sand casting—industry-leading for the process.
Quality Assurance Rigor
100% CMM inspection (accuracy ±0.02mm) for critical dimensions and statistical process control (SPC) for mold-making, maintaining defect rate 80% lower than industry average.
Rapid Precision Prototyping
5-day turnaround for 3D-printed sand molds (MOQ 1pc), ideal for aerospace prototyping and medical device development.
Certification Excellence
Certified to AS9100D (aerospace), ISO 13485 (medical), and IATF 16949 (automotive), with material traceability to melt lot numbers and heat treatment records.
