Aluminum CNC Turned Parts

Aluminum CNC turned parts are rotational components machined from a specified aluminum alloy and temper. Turning produces controlled diameters, shoulders, bores, grooves and threads, while secondary milling or drilling can add flats, slots and mounting features. Cable Glands India supplies drawing-based aluminum components for electrical OEMs, EPC contractors, power utilities and industrial distributors. Typical parts include stepped shafts, flanged bushes, threaded sleeves, spacers, coupling bodies, instrument collars. Specify the material grade, dimensions, finish and inspection requirements when requesting a quotation.

Price: US$ 8.00/kg | Standard tolerance: ±0.05 mm

The final quotation confirms drawing complexity, quantity, chargeable weight, finishing, documentation and delivery terms.

Detailed product overview

Component geometry and functional interfaces

Aluminum CNC turned parts are rotational components machined from a specified aluminum alloy and temper. Turning produces controlled diameters, shoulders, bores, grooves and threads, while secondary milling or drilling can add flats, slots and mounting features. Typical enquiries include stepped shafts, flanged bushes, threaded sleeves and related drawing-based components. The part specification should connect each feature to its function: location, fastening, conduction, spacing or fluid passage. A model communicates shape, while the controlled drawing defines acceptance. Identify mating parts and assembly direction so shoulders, reliefs and access clearances can be reviewed before a quotation is finalized. This is especially useful when one component combines several operations or must fit an existing assembly without adjustment.

Material selection and service conditions

The selected aluminum grade affects machining response and the finished component’s suitability. Compare chemical composition, mechanical condition, corrosion exposure and any electrical or thermal requirement before approving stock. An alloy number without a temper is an incomplete mechanical specification. Anodizing changes surface dimensions and electrical contact behaviour; coating thickness, masking and final inspection dimensions must be agreed before machining. A commercial alloy name alone is not a complete purchase specification. State the governing material standard and revision, stock form and required certificate. If a substitute is considered, record the engineering approval rather than relying only on a distributor cross-reference or a similar appearance.

Datums, dimensions and repeatable assembly

The standard tolerance for these parts is ±0.05 mm. Define the reference face, axis or datum system used to inspect the component. Position, perpendicularity, coaxial features and surface texture need their own drawing requirements when they influence assembly. A nominal dimension without its tolerance can lead to different interpretations during machining and inspection. Provide limits for critical interfaces, and distinguish functional dimensions from reference information. For flanged bushes, identify the features that control location rather than applying unnecessarily restrictive requirements everywhere.

Machining behaviour and part support

Thin aluminum sections can distort under clamping. Tool geometry, chip clearance, residual stress and the chosen temper affect the final fit and surface quality. Tool access, chip evacuation and the order of roughing and finishing influence the practical process route. Thin sections, interrupted cuts and intersecting holes deserve particular attention during drawing review. The manufacturing plan should establish how the component is held without damaging finished surfaces. Where spacers require a second operation, identify the datum transferred between setups. Agreement on these details supports consistent inspection and avoids assuming that machine type alone determines the final result.

Surface condition and assembly preparation

Available finish routes are specified as machined aluminum, anodizing or another specified protective finish. The drawing should define whether a surface is functional, cosmetic or both. Break sharp edges in accordance with the agreed requirement while protecting contact faces, thread starts and sealing lands. Cleaning needs depend on the service: residual chips, machining fluid or polishing compound can affect assembly. For coupling bodies, identify surfaces that must remain free from coating or mechanical damage. Confirm whether dimensional acceptance is required before finishing, after finishing or at both stages.

Purchasing information and production scope

Procurement teams should describe instrument collars by a controlled part number rather than by a photograph alone. A complete enquiry includes the drawing revision, quantity, material designation, finish and destination. State whether the order is a prototype, scheduled release or repeat requirement. The listed kilogram rate provides a commercial reference, but the written quotation must define its scope and weight basis. Keeping technical and commercial information together helps electrical OEMs, EPC contractors, utilities and distributors compare offers on the same requirements.

Key features

• Drawing-based CNC turning with drawing-specific secondary operations
• Standard dimensional tolerance ±0.05 mm; individual requirements subject to drawing review
• aluminum grade and condition specified before production
• Turned, bored, drilled, threaded or milled features according to geometry
• Finish and edge requirements linked to component function
• Inspection and material documentation agreed with the purchase order

Bores, holes and internal features

For aluminum components, specify through holes and blind holes separately, including usable depth and any drill-point allowance. Identify cross holes that intersect a bore so the deburring approach can be considered. A dimensioned bore may serve as clearance, location, bearing support or a flow passage; these functions can require different finish and inspection methods. Provide the mating diameter or fit requirement where relevant. Do not infer a sealing or pressure capability from an internal passage alone.

Threads and fastening interfaces

Define thread system, nominal size, pitch, internal or external form, engagement length and acceptance class. Metric, unified and pipe threads are different specifications and should not be mixed under a generic threaded-parts description. Include the required gauge basis and any post-plating allowance. For threaded sleeves, check wall thickness around the thread and provide adequate entry chamfers. Torque, locking method and service loading belong to the assembly specification and should be supplied when they affect the component design.

Grooves, slots and tool clearance

Grooves and slots should show width, depth, root radius and position from an identified datum. A sharp internal corner shown in a model may require an alternative radius or a different operation. State whether a groove locates a retaining element, provides clearance or carries a seal. The required edge condition should preserve the intended function. With CNC turning with drawing-specific secondary operations, access and component support influence the sequence; review narrow features and deep recesses before fixing the final drawing.

Contact faces and mating surfaces

Describe the actual function of each mating face. Mechanical seating, electrical contact and sealing do not necessarily require the same preparation. Specify flatness or roughness where the assembly needs it instead of treating the general ±0.05 mm dimensional tolerance as a surface specification. For stepped shafts, identify contact zones, prohibited coating areas and acceptable handling marks. The equipment designer remains responsible for validating the complete joint under operating loads, temperature and environmental conditions.

Inspection planning and traceability

Inspection should follow the drawing’s critical features and the agreed sampling plan. Suitable measurement methods depend on feature size, accessibility and tolerance; the presence of a CNC machine is not an inspection record. Specify whether a first-article report, dimensional layout, material certificate or batch identification is needed. Maintain a clear connection between the drawing revision and ordered aluminum grade. Special documentation and retained samples should be requested before production so the commercial offer includes the required work.

Packaging and repeat-order control

Protect finished threads, bores and contact faces during handling and transport. Separate components where metal-to-metal movement could damage a functional surface. Specify part-number labels, batch information and package quantities when they are needed for stores control or assembly lines. Repeat orders should refer to the approved drawing revision and any accepted deviations. If instrument collars are supplied with other components, identify each item independently to avoid mixing similar-looking materials or variants during receipt and installation.

Technical specifications

Raw material grades and international references

The following table supports material discussion. Cross-references are not unconditional equivalents: chemistry limits, product standard, temper or condition and testing requirements may differ. The purchase order should name the exact approved specification. Confirm current standard requirements and obtain material documentation for the selected stock.

Product types and variants

Industrial applications

Application suitability depends on the complete design. An alloy number without a temper is an incomplete mechanical specification. Anodizing changes surface dimensions and electrical contact behaviour; coating thickness, masking and final inspection dimensions must be agreed before machining. Provide temperature range, exposure conditions and expected mechanical or electrical function when these affect material choice. Equipment ratings, pressure limits and compliance claims require assembly-level evidence. The component drawing should capture the features needed to support that validation rather than relying on a generic catalogue description.

Manufacturing process

1. Drawing and material review

Review the aluminum grade, dimensions, datum structure and finish together. Identify features that need additional clarification, such as inaccessible burrs, incomplete thread callouts or conflicting limits. Confirm the controlled revision and obtain approval for any proposed change before manufacture.

2. Stock preparation and setup

Select the specified stock form and condition, then plan cutting allowances and workholding. Thin aluminum sections can distort under clamping. Tool geometry, chip clearance, residual stress and the chosen temper affect the final fit and surface quality. The setup should provide access to required features while protecting surfaces that are already finished.

3. Controlled machining sequence

CNC turning with drawing-specific secondary operations creates the principal geometry. Roughing removes excess material before the relevant finishing operations establish drawing features. Drilling, boring, tapping, slotting or secondary milling are added where required. Tool selection and cutting conditions depend on the actual alloy and geometry.

4. Edge finishing and cleaning

Remove burrs to the agreed edge specification, especially at intersecting holes and thread starts. Avoid rounding a functional edge beyond the drawing allowance. Clean the components using a method compatible with the material and subsequent finishing or assembly requirements.

5. Surface treatment and verification

Apply machined aluminum, anodizing or another specified protective finish only as ordered. Check the effect on fit and functional surfaces, including masked areas. Verify the required dimensions in the agreed finished condition and review the specified inspection records before release.

6. Identification and dispatch

Identify parts and packages against the order and drawing revision. Protect functional surfaces for the selected transport route. Include the agreed documentation and distinguish separate batches or materials where the purchase order requires traceability.

Quality standards and certification requirements

Quality requirements must be tied to the supplied part and order. Ask for the current applicable ISO 9001 certificate if supplier quality-system certification is required; confirm its scope and validity. This page does not assert unverified certification. Material records, including an EN 10204 document where specified and available, should match the supplied grade and batch. A material certificate does not replace dimensional inspection or finished-equipment approval.

Why choose Cable Glands India for this enquiry?

A useful quotation starts with an engineering definition of the aluminum part. Cable Glands India provides a contact point for discussing drawing-based components within this CNC and VMC product category. Compare offers using the same grade, tolerance, finish and documentation scope. The supplied rate is visible here so purchasing teams can begin a commercial discussion with a clear reference, while the approved drawing remains the basis of manufacture.

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Equivalent product terms in other languages

These search terms describe the product family for international purchasing discussions. Use the controlled drawing, alloy designation and unit system to remove ambiguity when placing an order.

Request a technical quotation

Send the drawing and revision, aluminum grade, order quantity, finish, inspection requirements and delivery destination to Cable Glands India. Quote this product title and the listed US$ 8.00/kg rate. Identify any individual tolerance differing from the standard ±0.05 mm. Request confirmation of price scope, material availability, production schedule and shipping terms in the written offer.

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