Always Imaging AI-4000CT Industrial Micro-CT System for Medium-to-Large Castings

Overview

The Always Imaging AI-4000CT is a high-performance industrial micro-computed tomography (micro-CT) system engineered for non-destructive volumetric inspection of medium-to-large metallic castings—particularly those used in automotive powertrain components, aerospace structural housings, energy turbine casings, and heavy-duty machinery. Based on cone-beam X-ray computed tomography principles, the AI-4000CT employs a high-voltage X-ray source (configurable at 450, 500, or 600 kV) coupled with a large-area flat-panel detector to acquire high-fidelity projection data across translation-rotation (TR) scanning trajectories. This geometry ensures optimal geometric magnification and signal-to-noise ratio for thick-section metal parts, enabling reliable reconstruction of internal structures—including porosity clusters, shrinkage cavities, inclusions, core shift, and wall thickness deviations—at sub-0.2 mm spatial resolution. Unlike conventional radiographic or ultrasonic methods, the AI-4000CT delivers true 3D quantitative metrology without part sectioning or destructive sampling, supporting full-volume dimensional analysis, GD&T validation, and defect classification per ASTM E1441 and ISO 15732 standards.

Key Features

• High-energy X-ray source with three selectable voltage levels (450/500/600 kV) optimized for penetration of aluminum, cast iron, steel, and nickel-based superalloys up to 350 mm equivalent steel thickness.
• Translation-rotation (TR) scanning architecture minimizes motion-induced artifacts and improves reconstruction fidelity for asymmetric or high-aspect-ratio castings.
• Large-format flat-panel detector (active area ≥ 400 × 400 mm) enables single-pass acquisition of specimens up to Ø1200 mm × H1500 mm, eliminating stitching artifacts and reducing scan time by up to 40% versus step-and-repeat protocols.
• Integrated radiation shielding compliant with IEC 61331-1 and national regulatory limits (<1 µSv/h at 1 m), including interlocked access doors, real-time dose monitoring, and emergency stop circuitry meeting EN 60204-1 requirements.
• Rigid mechanical gantry with ±0.01° angular repeatability and <5 µm linear positioning accuracy ensures long-term measurement stability and traceable calibration under ISO/IEC 17025 conditions.
• Modular thermal management system maintains X-ray tube and detector temperature within ±0.5°C during multi-hour scans, preserving image consistency and detector quantum efficiency.

Sample Compatibility & Compliance

The AI-4000CT accommodates castings weighing up to 100 kg and measuring up to 1200 mm in diameter and 1500 mm in height—covering engine blocks, transmission cases, pump housings, valve bodies, and turbine blades. Its TR scanning mode supports both symmetric and irregular geometries without requiring custom fixtures. The system meets electromagnetic compatibility (EMC) per EN 61326-1 and safety requirements per EN 61000-6-2. All acquired CT volumes are compatible with ISO/IEC 17025-accredited laboratories’ data integrity workflows and support audit-ready documentation for AS9100, IATF 16949, and FDA 21 CFR Part 11 compliance when paired with validated software modules.

Software & Data Management

The AI-4000CT ships with a dual-environment software suite: a real-time acquisition platform (Always Imaging Acquisition Suite v4.x) and an offline post-processing workstation (VGStudio MAX 3.4 licensed). Acquisition software provides live projection preview, automatic exposure optimization, beam hardening correction, and real-time ring artifact suppression. VGStudio MAX enables ISO 50 surface mesh generation, wall thickness analysis (per ISO 12781-2), porosity quantification (ASTM E1558), GD&T evaluation against CAD reference models (including profile, position, and concentricity), and automated defect classification via ADR (Automated Defect Recognition) modules trained on industry-specific casting flaw libraries. All processing steps are logged with timestamped, user-attributed audit trails satisfying GLP/GMP traceability requirements.

Applications

• Porosity mapping and volumetric quantification in aluminum die-cast engine manifolds and cylinder heads.
• Core shift verification and sand inclusion detection in gray iron brake calipers and differential carriers.
• Internal channel integrity assessment in investment-cast turbine nozzles and heat exchanger manifolds.
• Dimensional deviation analysis of as-cast vs. machined features in large ductile iron pump housings.
• Failure root cause analysis for field-returned cast components using comparative CT volume overlays.
• Process validation and first-article inspection for foundry process qualification (e.g., V-process, lost-foam, centrifugal casting).

FAQ

What materials and thicknesses can the AI-4000CT penetrate effectively?

The system achieves robust contrast-to-noise performance on aluminum alloys up to 250 mm, cast iron up to 180 mm, and low-alloy steels up to 120 mm—depending on selected kV, filtration, and integration time.
Is the AI-4000CT suitable for in-line production floor deployment?

While designed primarily for lab-based QA/QC and R&D environments, its TR scan automation, rapid reconstruction pipeline (<15 min for full-volume 32-bit reconstruction at 1024³ voxel grid), and IP54-rated enclosure options enable integration into controlled manufacturing cells with appropriate radiation zoning.
Can the system be calibrated and certified to international metrology standards?

Yes—Always Imaging provides NIST-traceable CT calibration phantoms (including line-pair, sphere-stack, and step-wedge artifacts) and supports third-party certification per VDI/VDE 2630-1.1 and ASTM E2737.
Does the AI-4000CT support automated reporting for quality documentation?

All VGStudio MAX analyses generate PDF/HTML reports with embedded 3D viewers, statistical summaries, and exportable CSV datasets—fully configurable to match customer-defined report templates and ERP/MES integration requirements.
What service and support options are available outside China?

Always Imaging partners with ISO 9001-certified regional service providers across Europe, North America, and Southeast Asia for preventive maintenance, remote diagnostics, application engineering support, and operator certification programs.