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Torlon Machining Services by TOPS Precision

High Heat Tolerance - We machine Torlon parts that are used at constant operating temperatures over 260 °C.

Précision dimensionnelle - Our multi-axis CNC machines maintain tight tolerances on parts with mission-critical requirements.

Superior Wear – We have handled filled Torlon grades for wear-intensive as well as load-bearing applications.

Material experience - We have been manufacturing using various grades of Torlon, which include 4203, 4301, 5530, et 5030.

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    TOPS precision offers a special Torlon machining that serves the industries that require high-performance thermoplastics, which have great mechanical, thermique, and chemical stability. Using our highly developed CNC technologies and our long experience in precision molding of plastic parts, we provide tight-tolerance Torlon (PAI) parts designed to perform mission-critical functions.

    Our Torlon parts, whether aerospace bushings, medical clean room housings, or semiconductor fixtures, are carefully machined to precise industry requirements and are on time within the necessary quality assurances.

    What is Torlon Thermoplastic?

    One of the most excellent performing thermoplastics is Torlon(r), which is a trade name for products of Polyamide-Imide (PAI). It integrates the power of thermosets with the machinability of thermoplastics. Torlon is famous for its high mechanical performance, great dimensional robustness, as well as its chemical and wear resistance, and extreme heat resilience.

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      What is the Process of Torlon Machining?

      Torlon machining is a subtractive production process where high precision machining is applied to processing CNC machines that are fitted to machine advanced thermoplastics. This begins by clamping and machining a block of Torlon (PAI) into shape by the device of cutting tools that are computer-programmed off a CAD model. Torlon is strong, thermally sensitive, and necessitates sharp tooling, moderate-slow cutting rates, as well as the best feeds, in order to prevent heat buildup and tooling degradation.

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        Temperature control and dimensional accuracy are usually controlled by coolants. In a large majority of the instances, post-machining annealing will be done to alleviate the internal stress and stabilize the finished part. With matching tooling and handling, Torlon can be precision machined into very tight tolerances, especially on the aerospace, électronique, and high-load mechanical parts.

        Why Choose Torlon?

        Torlon is exceptional when bearing mechanical stress, excessive temperatures, or chemical contact. It does not degrade as most thermoplastics do at extended operational temperatures of more than 250 °C and can be used in aerospace, semiconductor, and industrial machine applications.

        Properties of Torlon

        Here are some of the properties of Torlon:

        1. Service Temperature: Maximum 275°C (527°F)

        Torlon has one of the highest continuous-use temperatures combined with mechanical integrity of any thermoplastic, resisting environments up to 275°C. This qualifies it to be used in aerospace, automobiles, and industrial parts that are subjected to heat.

        2. Superb Wear Resistance

        Torlon is highly resistant to abrasion and friction and has been adapted in dynamic and load-bearing components such as bushings, roulements, and wear pads. It has an outstanding dry or slightly lubricated performance with long case life in high-cycle systems.

        3. High-Grade Creep Strength

        Torlon does not undergo permanent deformation even with extensive mechanical load and high temperatures. It has low creep properties that make it have dimensional stability in long-term structural uses, especially in the aerospace and high-stress mechanical assemblies.

        4. Résistance chimique

        Torlon is resistant to a wide variety of aggressive chemicals, acides, socles, carburants, hydraulic fluids, et solvants. This resistance lends itself to fluid-handling parts, équipement de traitement chimique, and auto underhood parts.

        5. Low Thermal Expansion

        Torlon has very low coefficients of expansion that make it have tight tolerances and a perfect fit across a broad range of temperatures. This is its vital thermal stability, which is important in applications where dimensional stability is vital, par exemple., in precision gears and housings.

        6. Strengths due to High Tension and Flexure

        Various other properties, such as the resistance to extreme stress due to high mechanical load choices, Torlon takes advantage of having high tensile and flexural strength comparable to certain metals. It is strong enough that it can be used in structural components that display shock, impact, and vibration without breaking.

        Nous pouvons résumer ces propriétés dans le tableau suivant:

        Propriété

        Explanation

        Typical Value

        Service Temperature

        Withstands prolonged high-heat exposure

        Up to 275°C (527°F)

        Résistance à l'usure

        Excellent for sliding and load-bearing parts

        Très élevé

        Résistance au fluage

        Maintains shape under long-term stress and heat

        Supérieur

        Résistance chimique

        Resists acids, carburants, solvents, and hydraulic fluids

        Excellent

        Expansion thermique

        Ensures dimensional stability under temperature changes

        ~2.3 x 10⁻⁵/°C

        Résistance à la traction

        Withstands high mechanical loads and impacts

        ~21,000 psi (145 MPa)

        Flexural Strength

        Resists bending under stress

        ~34,000 psi (234 MPa)

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          Design Recommendations for Torlon Parts

          Here are some of the important design recommendations for Torlon machining:

          1. No Sharp internal Angles

          All external corners should be rounded with fillets compared to sharp corners, which cause stress concentration internally. This enhances the durability of parts and reduces the possibility of cracking during either ingestion or machining.

          2. Add Thread Radii

          Make thread profiles rounded or with small radii at the root of the threads. This enhances strength against fatigue, thereby enhancing machining with ease to make tools that are more easily accessible, hence cleaner finishing.

          3. Creep and Expansion

          During the high-temperature conditions, Torlon can undergo low levels of thermal expansion or creep. The design should incorporate appropriate tolerances to ensure long-term dimensional control.

          4. Consider shrinkage after machining.

          Dimensional changes are possible through the post-machining processes, such as annealing. When design is being carried out, keep the potential shrinkage in mind, particularly when it comes to tight-tolerance or interlocking parts.

          5. Minimize Wall Thickness

          Do not go with very thin or thick walls. As far as possible, keep the wall thicknesses uniform to provide the right mix between strength and machinability and material economy.

          Torlon CNC Machining Material of PAI

          These are our most popular Torlon (P AI ) grades that we machine at TOPS Precision:

          Torlon Grade

          Key Attributes

          Meilleures applications

          Torlon 4203

          Unfilled, haute résistance, excellent electrical insulation, low outgassing

          Electrical insulators, vacuum parts, and semiconductor tools

          Torlon 4301

          PTFE + graphite filled; Excellente résistance à l'usure; low friction and creep

          Roulements, bagues, wear pads, scellés

          Torlon 5030

          30% glass-filled; high rigidity; stabilité dimensionnelle; haute résistance

          Pièces structurelles, load-bearing enclosures, and manifolds

          Torlon 5530

          30% carbon-filled; electrically conductive; superior wear resistance

          EMI shielding components, thrust washers, rouleaux

          Torlon 4435

          10% PTFE + 10% graphite + 10% fibre de carbone; improved tribological properties

          Low-lubrication sliding applications, bearing cages

          Torlon 4275

          Slightly modified 4203; improved toughness and impact resistance

          High-impact fixtures, mechanical guides

          Torlon AI-30

          30% carbon fiber filled; highest modulus among grades; good conductivity

          Aircraft structural fittings, high-load bearings

          Torlon 4540

          40% glass-filled; extremely rigid and wear-resistant

          Mechanical clamps, mounting

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            Available Finishing Options

            TOPS is here to provide you with the following surface finishing options with Torlon machining:

            • Polissage: Smooths out the matte finish of Torlon and enhances the appearance of visual parts.
            • Débarquant: Cuts off safety and assembly burrs and sharp edges to machining.
            • Recuit stabilizes the dimensions by getting rid of internal stress induced during CNC machining.
            • Surface Texturing: Deposits functional or cosmetic, grip, étiquetage, or coating adhesion textures.
            • Paint (par exemple., PTFE): Optional add-ons may improve the lubricity of the surface, its chemical resistance, or electrical insulation.

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              Common Torlon Machined Parts

              Here are some of the common Torlon machined parts:

              1. Aircraft fasteners, roulements, and bushes
              2. Precision insulators and seals
              3. Spacers and high-load thrust washers
              4. Components dealing with semiconductor wafers
              5. Electrical component carriers
              6. Pump pieces and fluidic manifolds

              Available Finishing Options for Torlon Machining

              The following options are available for surface finishing:

              • Polissage: Smooths out the matte finish of Torlon and enhances the appearance of visual parts.
              • Débarquant: Cuts off safety and assembly burrs and sharp edges to machining.
              • Recuit stabilizes the dimensions by getting rid of internal stress induced during CNC machining.
              • Surface Texturing:Deposits functional or cosmetic, grip, étiquetage, or coating adhesion textures.
              • Paint (par exemple., PTFE): Optional add-ons may improve the lubricity of the surface, its chemical resistance, or electrical insulation.

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                Applications of Torlon Machining

                Here are some of the applications of Torlon machining:

                • Engines and structural parts of aircraft
                • Plug and socket guide and sockets semiconductor wafer
                • Valve parts and Oil & gas pump housings
                • Electrical connectors at high temperatures
                • Fuel System and transmission parts of an automobile
                • Components of medical diagnostic equipment

                Advantages of machining Torlon

                The following are different advantages of Torlon:

                1. Ultra High Strength at High Temperatures –Excels PEEK, PPS, and nylon in aggressive temperatures.
                2. High Wear Resistance –Wears longer in the dry, unlubricated conditions than metal.
                3. Electrically Insulating or Conductive – Designation dependent, flexible.
                4. Radiation and Chemical Resistance- Can be used in sterilization as well as clean rooms.
                5. Stabilité dimensionnelle-This gives low thermal expansion, resulting in fits and form.

                Challenges of Torlon Machining

                Let’s discuss some of the challenges.

                • Expensive Material Price –is a high-end thermoplastic as opposed to the majority of polymers.
                • Machining Challenge-Tough toolholding properties, liquide de refroidissement, and sharp tools are needed.
                • Low Feed Rates – To prevent tool wear and thermal stress.
                • Heat Sensitive –May deform during hard machining.

                Five Cost-Saving Ideas on Torlon Machining

                The following are different cost-saving tips for Torlon machining:

                1. Right Grade Use – Over-specification is a bad idea; choose the Torlon type for real use.
                2. Keep Tolerances at the Minimum –The closer the tolerances, the higher the expenses in terms of cost and time.
                3. Consolidate Parts –Incorporate functions to decrease the assembly into one component.
                4. Batches Ordering –It is more economical to do bigger runs, maximizing tooling up and set-up costs.
                5. Consult DFM Early – Our engineers will streamline your design for efficient machining.

                Create Machined Torlon Parts with TOPS Precision

                TOPS precision offers end-to-end solutions, including design review and all the way to delivery. Our technical sales group will provide a cost-effective grade solution to Torlon and evaluate your part drawings or models, and provide a prototype or production run with unprecedented lead time.

                We have expertise in machining Torlon 4203, 4301, 5030, et 5530 and are capable of doing single-piece prototyping as well as large batch orders with tight Quality control inspection.

                We Guarantee Our Torlon Machining Services

                All Torlon components are made to order and inspected by ISO 9001-approved standards. Our warranties are:

                1. The precision to your precise requirements
                2. Truthful material tracking and certifications
                3. Quickly provide inspection reports
                4. Quoting-to-post production support

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                  FAQs About ABS CNC Machining

                  UN: We generally have tolerances as low as +0.01mm — -0.01mm based upon the geometry of the parts.

                  UN: Oui. Our specialization includes machining and reinforced grades, which include 5030 (glass-filled) et 5530 (carbon-filled).

                  UN: Ça prend 5 à 7 business days to supply prototypes. Depending on the volume, production runs occur in variations.

                  UN: It all depends on the application, and some grades are biocompatible and suitable for sterilization.

                  UN: Oui. On request, we can offer complete documentation material sheet, and test reports.

                  UN: Absolument. We accept STEP, IGES, STL, Dwg, and DXF formats.

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