Consistent Part Geometry
Repeatable dimensions help maintain alignment between housings, mounting points, and mating components across production batches.
Capabilities
CNC MachiningCNC milling, 5-axis machining & CNC turning› 3D PrintingSLA, MJF, SLS & DMLS 3D printing› Vacuum CastingSilicone mold making, urethane casting & vacuum-cast prototypes› Sheet Metal FabricationLaser cutting, bending & welding› Injection MoldingLow-volume, insert & overmolding› Rapid ToolingPrototype tooling for molded-part validation› Die CastingAluminum, zinc & magnesium die casting› Metal StampingPrecision & progressive stamping› Surface FinishingBlasting, anodizing, plating, coating & polishing›CNC Machining
Browse by Material
AluminumLightweight, corrosion-resistant aluminum for CNC-machined prototypes, brackets, housings, and precision parts.› Stainless SteelCorrosion-resistant stainless steel for CNC-machined components, tooling, and parts used in clean or demanding environments.› SteelVersatile steel for CNC-machined structural parts, fixtures, shafts, brackets, and production tooling.› ZincZinc for compact die-cast housings, hardware, and detailed industrial components where fine detail matters.› CopperHigh-conductivity copper for electrical contacts, connectors, heat-transfer parts, and precision components.› BrassMachinable brass for fittings, valves, electrical hardware, bushings, and precision turned parts.› TitaniumHigh-strength, lightweight titanium for aerospace, medical, and performance-critical machined components.› MagnesiumUltra-lightweight magnesium for weight-sensitive housings, structural components, and machined prototypes.› BronzeWear-resistant bronze for bushings, bearings, marine hardware, and sliding mechanical components.› IronDurable iron for fixtures, tooling, structural components, and wear-focused industrial applications.› ABSImpact-resistant ABS for machined prototypes, housings, fixtures, and functional appearance parts.›Die Casting Services
GD Prototyping’s die casting services combine tooling review, secondary machining, and finishing to support consistent dimensions and efficient production of custom metal parts.
Die casting forms metal parts by injecting molten alloy under pressure into a reusable steel mold. The metal solidifies into the mold’s shape, creating features such as ribs, bosses, and thin walls.
Aluminum, zinc, and magnesium alloys are commonly used for die cast parts. Repeat production spreads tooling costs across more parts, while secondary machining can bring critical holes and mating surfaces to their specified tolerances.

Repeatable dimensions help maintain alignment between housings, mounting points, and mating components across production batches.
Reusable die cast tooling and short casting cycles support efficient output for recurring production orders.
Combine ribs, bosses, and mounting features in one casting to reduce separate components and assembly steps.
Near-net-shape die cast parts can reduce bulk material removal compared with machining from solid stock.
1. Alloy-compatible coatings and cosmetic treatments help meet appearance and corrosion-protection requirements.

Aluminum die casting for lightweight housings, brackets, and heat-dissipating metal components.

Zinc die casting for fine details, thin walls, and plated components.

Magnesium die casting for lightweight enclosures and weight-sensitive structural components.
How It Works
Review CAD files, quantities, alloy requirements, wall thickness, draft angles, and critical dimensions to assess casting feasibility.
Plan the die casting mold, including gating, cooling, venting, and ejection, with allowances for shrinkage and secondary machining.
Run trial castings and review sample dimensions, appearance, and fit before approving the production setup.
Produce the agreed quantity using the approved die and process settings, with checks at defined production stages.
Trim gates and flash, machine specified features, and apply alloy-compatible surface treatments according to project requirements.
1. Check finished parts against drawings and agreed inspection criteria, then protect, package, and arrange shipment.
Illustrative material appearance; final grade and finish are project-specific.Lightweight, corrosion-resistant aluminum for CNC-machined prototypes, brackets, housings, and precision parts.
Aluminum 6061
Cured powder coatings for metal parts, with varied colors and textures.

Industrial painting for specified colors, gloss levels, and application-specific surface protection.

Electrically deposited metal coatings for protective, conductive, or decorative applications.

Abrasive blasting for matte textures and metal surface preparation before coating.

Mechanical polishing for smoother surfaces and satin, bright, or mirror finishes.

Electrodeposited paint coatings for prepared conductive metal components and assemblies.

Aluminum conversion coating for corrosion protection and improved paint adhesion.

Chemically deposited metal coatings with relatively uniform thickness on compatible, prepared surfaces.








Advantages
Our die casting services connect tooling, machining, and finishing within one project scope, helping reduce separate sourcing while keeping assembly and inspection requirements aligned.
Early design review addresses casting risks before tooling investment, helping reduce avoidable mold changes and production rework.
Combine casting, secondary machining, and finishing in one project to reduce sourcing effort and process handoffs.
Balance casting performance, mechanical properties, and surface treatment compatibility around the part’s function and operating environment.
Agree critical dimensions and inspection needs upfront, with dimensional reports and material certifications available on request.
Maintain die cast tooling for recurring orders, with proposed design changes reviewed for practical mold modification options.
1. Protect critical surfaces during packing and coordinate shipment around the agreed project delivery requirements.
FAQ
Aluminum, zinc, and magnesium alloys, selected according to strength, weight, corrosion resistance, and finish requirements.
Mold complexity, alloy, order quantity, and required machining or finishing determine tooling and per-part costs.
Tolerances depend on alloy, geometry, and tooling. Critical dimensions are reviewed individually and may require secondary machining.
Options include blasting, polishing, painting, powder coating, and plating, subject to alloy compatibility and project requirements.
1. Send CAD files, drawings, alloy requirements, quantity, surface finish, critical dimensions, and your required delivery date.
Our commitment does not end at delivery. We provide comprehensive after-sales support to ensure your satisfaction and long-term success.
Ongoing technical support to address questions and improve future designs.
Rapid investigation and corrective action to resolve any quality concerns.
Detailed inspection reports and certificates available with every order.
Documented processes and tooling management ensure consistency for repeat orders.
Secure packaging and logistics coordination across orders.
Easy reorder process and manufacturing communication.
Send your files, drawings, material notes, quantity, finish requirements, and critical features for a project-specific review.