Molten Metal Flow Control
What Is a Gating System?
FLOW
Metal Delivery System
The Path Molten Metal Takes Into the Casting
A gating system controls how molten metal flows into a mold cavity. It comprises the sprue, runners, gates, and risers — each element influencing fill rate, turbulence, solidification behavior, and final casting quality.
Why Gating Design Matters
Poor Flow Design Creates Costly Casting Defects
01
Porosity & Shrinkage
Improper feeding and solidification pathways can leave internal voids and shrinkage defects.
02
Cold Shuts & Misruns
Poor metal flow can prevent complete mold filling, producing incomplete castings.
03
Oxide Inclusions & Hot Tears
Excess turbulence and poor feeding conditions increase metallurgical defect risk.
04
Higher Scrap Rates
Defective castings increase scrap, rework, delays, and ultimately reduce profitability.
BIM
Engineering Insight
A Well-Designed Gating System Is the Foundation of Casting Quality
Optimizing metal flow, feeding behavior, and solidification pathways reduces defects, improves yield, and creates more consistent casting performance across production runs.
Virtual Validation
Why Virtual Validation Matters
Eliminate Physical Trials
Simulation replaces costly trial-and-error prototypes, reducing tooling waste before production begins.
Predict Defects Early
Identify shrinkage, porosity, and cold shuts in the digital model — not on the shop floor.
Accelerate Time-to-Market
Validated gating designs move directly to production, compressing development cycles significantly.
Digital Gating Development
The PoligonCast Simulation Workflow
FLOW
Simulation-Driven Engineering
Validate Gating Performance Before Tooling Is Built
PoligonCast's structured simulation process ensures every gating system is rigorously tested across fill behavior, thermal gradients, and solidification patterns — all before committing to physical tooling.
Four-Step Workflow
From Digital Geometry to Optimized Gating Design
01
Design Foundation
3D CAD Modeling
Build and prepare accurate digital geometry for casting and gating evaluation.
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02
Flow Verification
Mold Flow Simulation
Analyze filling behavior, turbulence patterns, air entrapment, and metal flow quality.
↓
03
Risk Assessment
Defect Analysis
Predict shrinkage, porosity, hot spots, and other casting defects before production.
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04
Final Design Output
Optimized Gating
Refine runner, gate, riser, and feeder design for maximum quality and yield.
READY
Workflow Result
Verified Performance Before Physical Tooling Investment
The PoligonCast workflow integrates geometry, flow behavior, defect prediction, and gating optimization into a single digital process that reduces risk, shortens development cycles, and improves casting quality.
Simulation Parameters
Key Simulation Parameters Analyzed
Metal Flow Velocity
Detects turbulence zones that cause oxide entrapment.
Temperature Distribution
Maps thermal gradients to predict hot spots and cold shuts.
Solidification Sequence
Ensures directional solidification toward risers for sound castings.
Pressure & Fill Time
Optimizes gate sizing to balance speed and laminar flow.
Measurable ROI
Business Impact of Virtual Validation
ROI
Data-Driven Results
Virtual Validation Creates Value Before Production Begins
Virtual validation transforms gating design from an art of experience into a data-driven engineering discipline — delivering measurable ROI across every production run.
Performance Indicators
Quantifiable Benefits Across Casting Operations
Quality Improvement
Scrap Reduction
Typical reduction in casting defects achieved through simulation-driven gating design.
Development Speed
Faster Iteration
Design cycles accelerated versus traditional physical trial methods.
Financial Impact
Cost Savings
Reduction in tooling and rework costs before first production pour.
ROI+
Business Outcome
Higher Yield, Faster Decisions, Lower Production Risk
By validating gating performance digitally, manufacturers reduce uncertainty, accelerate development cycles, and improve profitability before the first mold is ever poured.
Partner with Us
Partner with PoligonCast
PoligonCast brings together advanced casting simulation, foundry engineering expertise, and digital manufacturing solutions to help you validate gating systems virtually — before production ever begins.
1
Simulation-First Approach
Every project begins with rigorous virtual validation to ensure quality outcomes.
2
End-to-End Engineering Support
From CAD design to final casting, PoligonCast guides your process with precision.
3
Proven Industry Expertise
Trusted by foundries worldwide to reduce defects, cut costs, and accelerate delivery.
