Investment Casting Services

Frigate Die Casting Services offers top-notch investment casting for various industries. This method creates metal parts with very precise details and smooth surfaces. It produces parts close to their final shape with excellent dimensional accuracy. This means you get high-quality, well-fitting parts every time. 

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Advantages of Investment Casting Services

High Dimensional Accuracy

Investment casting ensures parts are made to exact measurements. This means each part fits perfectly and works as intended.

Smooth Surface Finish

The process creates very smooth surfaces on parts, reducing the need for extra finishing and improving the look and feel.

Flash-free Parting Lines

Investment casting leaves no extra metal on parting lines. This means fewer defects and a cleaner final product without extra trimming.

Compatible with Most Metals

This casting method works with many metals. It's flexible and can handle different materials for various needs and industries.

Full-Service Precision Quality Investment Castings

Our experts handle over 200 types of ferrous and non-ferrous alloys, like strong stainless steel, aluminum, armor, and nickel-based alloys. Our process starts with smart design and quick prototyping to ensure high quality and efficiency. After casting, we provide in-house machining, coating, and assembly to deliver complete, ready-to-use components. 

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Our Investment Casting Process

Pattern Creation

Start by making a wax pattern of the part you want to cast. This pattern is a replica of the final product. 

Mold Making

Dip the wax pattern into a ceramic slurry to create a mold. This coating hardens to form a shell around the wax pattern. 

Wax Removal

Heat the mold to melt and remove the wax. This leaves a hollow ceramic shell that shapes the final part. 

Metal Pouring

Involves Pouring molten metal into a hollow shell. The metal fills the space left by the wax pattern, taking its shape.

Shell Removal

Once the metal has cooled and solidified, break away the ceramic shell, revealing the metal part. 

 

Finishing

Clean and finish the metal part to remove any leftover shell material and achieve the desired surface quality. 

Investment Casting Materials

We specialize in casting advanced parts from many metals and materials. Our investment casting method helps us cast components to meet your complex needs and handle tricky tasks. 

Stainless Steel

It is known for its strength, durability, and resistance to corrosion. It's used in industries like aerospace, automotive, and medical devices for parts that need to withstand tough conditions. 

Carbon Steel

Carbon steel is used for parts that require high strength and wear resistance. It's commonly found in automotive, machinery, and industrial applications. 

Alloy Steel

Alloy steel contains additional elements like chromium, nickel, or molybdenum to improve properties like strength, toughness, and resistance to heat. It's used in demanding applications like tools and heavy machinery. 

Nickel-Based Alloys

Nickel-based alloys offer excellent resistance to high temperatures and corrosion. They are used in applications like turbines, aerospace components, and chemical processing. 

Cobalt-Based Alloys

Cobalt-based alloys are known for their hardness and wear resistance. They are often used in high-stress environments, such as gas turbines and medical implants. 

Aluminum Alloys

Aluminum alloys are lightweight and have good corrosion resistance. They are used in automotive, aerospace, and consumer products where weight and durability are important. 

Bronze

Bronze is a durable and corrosion-resistant alloy of copper and tin. It's used in applications like marine hardware, sculptures, and bearings. 

Copper Alloys

Copper alloys, including brass and bronze, are used for their good electrical conductivity and corrosion resistance. They are common in electrical components and decorative items. 

Streamlined Casting for Top Quality and Speed

Frigate knows customers want high quality, low cost, and quick delivery. A lean manufacturing approach is used in the investment casting services to meet these needs. This method cuts out waste, reduces costs, and boosts quality. Combining multiple steps like wax injection, mold building, and first dipping into single processes makes casting faster and smoother. Technicians are trained to handle different tasks, speeding up the process and minimizing handoffs. This approach is applied throughout the company, saving both time and money for customers. 

Compliance for Investment Casting Services

We ensure full compliance with industry-specific standards, integrating advanced quality control and safety measures into every stage of our investment casting process. Our services align with rigorous regulatory requirements to provide various industries with precise, reliable, and safe components. Adherence to these certifications guarantees that our products meet or exceed expectations, reducing risks and improving overall performance. 

Key Compliance Certifications

ISO 9001:2015

Quality management systems ensuring consistent production and customer satisfaction. 

ASTM A385-14

Standard practice for sampling steel castings for mechanical testing, ensuring material reliability.

RoHS Directive 2011/65/EU

Restricts hazardous substances in electrical and electronic products, ensuring environmental compliance. 

ITAR (22 CFR 120-130)

Compliance with U.S. regulations on defense and aerospace technologies to prevent unauthorized export. 

DFARS 252.225-7014

Compliance with defense industry standards for materials, manufacturing processes, and sourcing.

UL 94 V-0

Certification for flammability standards in electrical and electronic components.

REACH (EC 1907/2006)

Ensures that chemicals used in investment castings are safe for human health and the environment. 

Tolerance for Investment Casting Services

Dimensional Tolerance
±0.1 mm to ±2.0 mm

The permissible variation in linear dimensions (length, width, height) based on part complexity and casting method. Higher precision is achievable on smaller parts. 

Wall Thickness Tolerance
±0.3 mm to ±1.5 mm

Variation in the thickness of the walls. Critical for ensuring uniform mechanical properties and preventing defects like hot spots or thin areas. 

Geometric Tolerance
±0.1 mm to ±1.5 mm

Tolerances related to the geometry of the casting, such as flatness, roundness, or concentricity. Ensures correct part alignment and mating with other components. 

Surface Finish (Ra)
Ra 0.8 to Ra 6.3

The roughness of the casting surface, which affects the part’s performance, friction, and aesthetic qualities. Ra 0.8 is often for critical sealing surfaces. 

Casting Defects (Porosity)
≤ 1.5% of total volume

Maximum allowable porosity in the casting, a key factor in determining strength, durability, and integrity. Critical for aerospace and automotive applications. 

Roundness (Circularity)
≤ 0.05 mm to ≤ 0.5 mm

Tolerance on roundness, crucial for parts like rings, shafts, or gears. Ensures proper fit and function, reducing wear and improving performance in rotating parts. 

Flatness
±0.2 mm to ±1.0 mm

Deviation from perfect flatness, important for proper sealing, assembly, and performance in both static and dynamic applications. 

Parallelism
±0.1 mm to ±0.5 mm

Deviation in parallel surfaces or features, critical for part assembly and function, ensuring correct spacing and alignment between mating components. 

Angle Tolerance
±0.5° to ±3.0°

Deviation in angles between casting surfaces. Used for ensuring proper assembly, fitting, and orientation of parts in applications like engine blocks or frames. 

Hole Positioning Tolerance
±0.1 mm to ±0.5 mm

Deviation in the position of holes relative to other features. Essential for precise component assembly and mechanical function in parts like brackets or fixtures. 

Thread Form Tolerance
Tolerance on internal and external threads for castings, ensuring correct fit and engagement of screws and bolts, vital for structural integrity in mechanical assemblies.

Tolerance on internal and external threads for castings, ensuring correct fit and engagement of screws and bolts, vital for structural integrity in mechanical assemblies. 

Casting Shrinkage
0.3% to 2.0%

Variation in part size due to material shrinkage during solidification. This is a critical factor for achieving accurate final part dimensions after cooling. 

Metal Flow Control
±0.5 mm to ±2.0 mm

Tolerance on the distribution of metal flow during casting, ensuring uniform thickness and eliminating defects such as cold shuts or misruns. 

Radii and Fillets
±0.1 mm to ±0.3 mm

Tolerance for the radii or fillet corners in castings, which affect stress distribution and part strength, particularly in fatigue-critical applications. 

Core Shifting
≤ 0.3 mm

Tolerance for movement or misalignment of cores inside the mold, which could result in dimensional errors, affecting the overall shape and functionality of the part. 

Internal Surface Finish
Ra 1.6 to Ra 3.2

Roughness of internal surfaces, particularly important for parts with complex internal passages or channels, such as aerospace or automotive engine components. 

Corner Radius
±0.2 mm to ±1.0 mm

Tolerance for corner radii, which is critical for ensuring smooth transitions and reducing stress concentration in parts exposed to high mechanical loads. 

Thickness Variability
±0.5 mm to ±1.5 mm

Variation in wall thickness across the part, which impacts casting uniformity, mechanical properties, and resistance to thermal or mechanical stresses. 

Casting Alignment Tolerance
±0.2 mm to ±1.0 mm

Deviation between aligned surfaces or features, essential for ensuring that parts fit and assemble properly with other components in the final product. 

Length and Width Tolerance
±0.1 mm to ±2.0 mm

Tolerance for part dimensions, critical for large-scale assemblies and ensuring proper fit with mating components in applications such as automotive or aerospace. 

Quality Testing Standards for Investment Casting Services

Dimensional Tolerances
Laser Scanning

Uses laser scanners to quickly and accurately measure the part’s geometry to confirm it meets precise dimensional tolerances. 

Porosity (Micro Porosity)
Micro-CT Scanning

Utilizes micro-computed tomography (CT) to detect and quantify internal porosity at a microstructural level, ensuring integrity. 

Internal Defects
Eddy Current Testing

Detects surface and subsurface cracks or inclusions by inducing electric currents, especially useful for detecting fine cracks. 

Fatigue Life
Rotating Bending Fatigue Test

Measures the number of cycles a component can endure under alternating bending stresses before failure, crucial for cyclic loading. 

Corrosion Resistance
Salt Spray Test (ASTM B117)

Assesses the corrosion resistance of the material under controlled exposure to salt fog, simulating aggressive environmental conditions. 

Cavity Integrity
Computed Tomography (CT) Scanning

Non-destructive imaging technique to detect defects and ensure the quality and uniformity of internal cavities and cores. 

Material Strength
Compression Test (ASTM E9)

Measures the material’s behavior under compressive loads, particularly important for parts exposed to compression during use. 

Thermal Stability
Thermal Shock Test (ASTM C421)

Tests the material’s ability to withstand rapid temperature changes, simulating extreme thermal cycles during operational use. 

Sintering Quality
Microsphere Imaging (SEM Analysis)

Scanning electron microscopy (SEM) is used to examine sintered regions in castings, ensuring proper bonding and material flow. 

Magnetic Permeability
Magnetic Permeability Test

Measures how a material reacts to a magnetic field, useful for evaluating casting material for electromagnetic applications. 

Creep Rupture Strength
Creep Rupture Test (ASTM E292)

Assesses the material’s resistance to high-temperature stress over prolonged periods, indicating its ability to perform under heat. 

Alloy Composition
Inductively Coupled Plasma (ICP) Analysis

Determines the elemental composition of alloys, ensuring material meets the specific chemical requirements for casting. 

Surface Coating Quality
Adhesion and Cohesion Testing (ASTM D3359)

Verifies that any surface coatings adhere properly under mechanical stress, maintaining long-term performance and aesthetic quality. 

Refractory Material Performance
Refractory Shrinkage Testing

Measures how refractory molds shrink during casting, ensuring that dimensional stability is maintained through the casting process. 

Vibration Fatigue
Shaker Table Testing

Subject castings to vibrational stress using a shaker table to test their fatigue resistance under dynamic loading conditions. 

Mold Integrity
Leak Testing (Pressure Decay Method)

Assesses mold integrity by checking for leaks, ensuring that the casting process is not compromised due to mold defects. 

Resilience
Impact Resistance Test (ASTM D7136)

Determines the material's ability to resist sudden forces or impacts, critical for parts subjected to high-energy environments. 

Grain Flow Analysis
Grain Flow Visualization (Ultrasound or X-ray)

Evaluates the flow of material in the mold to ensure uniform grain structure, important for minimizing stress points in the casting. 

Tensile Modulus
Stress-Strain Curve Analysis (ASTM D638)

Measures the stiffness or rigidity of the material by analyzing its stress-strain curve under tensile loading. 

Weldability
Weldability Test (ASTM E243)

Assesses how well the material can be welded without causing defects, essential for parts that may require post-casting welding. 

Thermal Conductivity
Thermal Conductivity Test (ASTM E1952)

Measures the material's ability to conduct heat, which is crucial for applications requiring heat dissipation or thermal control. 

Ductility
Elongation Test (ASTM E8)

Measures the extent to which a material can be stretched before breaking, indicating its ability to undergo deformation without failure. 

Dimensional Stability Post-Heat Treatment
Heat Treatment Effectiveness Test (ASTM A380)

Ensures that heat treatment processes do not cause excessive distortion or warping in cast parts, maintaining dimensional integrity. 

Recyclability
Recycling Process Simulation

Simulates the recycling of metal castings, ensuring that the material can be reused in future casting processes without loss of quality. 

Damping Properties
Damping Capacity Testing (ASTM E756)

Measures the ability of the material to absorb vibrational energy, which is particularly relevant in applications like automotive or aerospace. 

Reliable Investment Castings for Defense Applications

Military and defense soldiers depend on high-quality castings to perform their jobs effectively. Investment castings are crucial for creating parts that meet strict standards for defense applications. These castings are made precisely, ensuring they are strong, reliable, and fit perfectly. They help soldiers have the best equipment and perform their duties safely and efficiently. At Frigate, investment casting expertise guarantees that parts meet exact specifications and quality requirements. For defense applications, rely on Frigate to provide precise and dependable castings that support your critical needs. 

Industries We Serve

What You Get

↓ 7-8%

OPS COST

↓ 2-3%

COGM

3X

Aggregation

↑ 25%

Machinery Utilisation

↓ 50%

Expedition

↑ 30%

Frigater Revenue

Investment Casting for Complex Parts and Large Batches

Frigate’s investment casting service includes making ceramic molds, advanced machining, heat treatment, and casting with various materials. This ensures precise parts that meet your project’s needs. Our advanced equipment allows for high-volume production, fitting within budgets and timelines. If machining is needed, you can rely on us for surface finishing for complex parts. 

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Having Doubts? Our FAQ

Check all our Frequently Asked Question

What invests casting ideal for complex shapes?

Investment casting allows for the creation of highly complex shapes with intricate details. It uses a wax pattern coated in a ceramic shell. The wax is then melted away, leaving a hollow mold. The process can achieve near-net shapes without needing extensive machining, making it perfect for parts with fine features and complex geometries. 

How does investment casting achieve tight tolerances?

The investment casting process uses ceramic molds that can capture precise details of the wax pattern. When the metal is poured into the mold, it solidifies to match the exact shape, allowing for tight tolerances. Controlling the cooling and solidification process also helps minimize defects, ensuring parts have consistent dimensions. 

What types of alloys can be used in investment casting?

Investment casting can handle a wide range of alloys, including stainless steel, carbon steel, aluminum, titanium, and nickel-based alloys. These materials are chosen depending on the part's application and requirements, such as heat resistance, corrosion resistance, or mechanical strength. The flexibility in material choice is a major benefit of investment casting. 

How does investment casting improve surface finish quality?

The ceramic shell used in investment casting forms a smooth inner surface, which transfers to the final cast part. This results in a smooth surface finish, often between 125 to 63 microinches (3.2 to 1.6 microns) without additional machining. This is particularly useful for components that need minimal post-production finishing or polishing. 

Why is investment casting suited for high-temperature applications?

Investment casting is well-suited for high-temperature applications because it can work with superalloys and other heat-resistant materials. These alloys retain their strength and integrity even at extreme temperatures, making investment casting ideal for aerospace components, gas turbines, and other demanding environments where high heat resistance is critical. 

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LOCATIONS

Global Sales Office

818, Preakness lane, Coppell, Texas, USA – 75019

Registered Office

23, 6th West Street, Balaji Nagar, Kattur,  Pappakuruchi, Tiruchirappalli-620019, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ã…¤

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