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Product Description
| thing | describe |
| Design/Size | According to customer's drawings or samples |
| Material |
Aluminum: 6061, 6063, 6082, 7075, 5052, A380, etc. Stainless steel: SS201, SS301, SS303, SS304, (SS304 food grade), SS316, SS316L, SUS430, SS416 Steel: low carbon steel, carbon steel, 4140, 4340, Q235, Q345B, 20#, 45#, etc. Alloy steel (15Cr, 20Cr, 42CrMo), etc. Brass: HPb63, HPb62, HPb61, HPb59, H59, H68, H80, H90, etc. Copper, bronze, copper, etc. Titanium: TC4 (TiAl6v4, Grade f5) Plastic: ABS, PC, PE, POM, Delrin, Nylon, Plastic, PP, PEI, Peek, etc. |
| process | CNC machining, turning, milling, stamping, turning, cutting, etc. |
| Delivery time | Samples usually take 3-7 working days, and mass production will be carried out according to the detailed quantity after sample approval. |
| Surface treatment | Transparent anodizing, color anodizing, chemical coating, brushing, passivation, polishing, chrome plating, sandblasting, laser engraving, zinc plating, black oxide, nickel plating, chrome plating, carburizing, heat treatment, painting |
| Test equipment | Coordinate measuring machine (CMM), 2D measuring instrument, projector, altimeter, micrometer, thread gauge, hardness tester, caliper, pin gauge, salt spray tester, concentricity measuring instrument, spectrometer. |
| Quality Management System |
ISO 9001:2015 ISO 13485:2016 |
| application | Auto parts, machinery parts, computer parts, medical parts, home appliance parts, electrical parts, electronic product parts, electronic parts, generator parts, alternator parts, generator parts, stationery, power switches, micro switches, construction, merchandise and A/V equipment. |
| File Format | Solidworks, Pro/Engineer, CAD, PDF, JPG, DXF, IGS |
| Package | Inner plastic bag, outer standard carton, or as per customer's requirements |
| Shipping | Sea freight, air freight, international express (DHL, FedEx, TNT, UPS). |
| Serve | The professional foreign trade team provides enthusiastic and fast response services. Dimensional inspection report/Raw material certificate/Surface treatment report/Engineering drawing RoHS report/Salt spray test report/Hardness test report |
I. Product Overview
This component is a high-precision motor rear end cover blank and finished part. It is a critical structural element designed for high-performance industrial motors.
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Material Properties: Cast from ZL108 aluminum alloy per GB/T 1173 standards. This material offers excellent castability and thermal stability, essential for dissipating heat during motor operation.
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Surface Finish: The part features a professional Sa2.5 grade sandblasted surface. This process removes casting artifacts and provides a uniform matte texture for improved aesthetics and coating adhesion.
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Structural Stability: The product undergoes complete aging treatment to eliminate internal casting stresses. This ensures the part maintains its dimensional integrity and does not warp during high-speed machining or under thermal loads.
II. Machining Strategy & Process
As a precision facility, we employ a "Datum-First" machining strategy to ensure all features align perfectly with the motor's axis:
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Quality Inspection: Every blank is inspected to ensure it is free from porosity, sand inclusions, or burrs.
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Datum Establishment: We prioritize machining the mounting face and central bore to establish the primary technical datums.
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Multi-Axis CNC Milling: Complex weight-reduction slots and external profiles are milled using high-speed CNC centers.
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Precision Boring: The central bearing seat is bored to achieve the required cylindrical accuracy and concentricity.
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Drilling & Tapping: Peripheral mounting holes are drilled to ensure a perfect fit with the motor housing.
III. Technical Challenges
Machining this specific geometry involves overcoming several engineering hurdles:
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Thin-Wall Integrity: The design includes multiple deep slots for weight reduction. These thin-walled sections are prone to vibration or deformation if clamping forces are not perfectly balanced.
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Positional Accuracy: The relationship between the central bearing bore and the four mounting holes is vital. Any deviation can cause motor vibration or premature mechanical failure.
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Draft Angle Integration: The casting features specific draft angles. Transitioning these tapers into precision-machined surfaces requires sophisticated toolpath planning.
IV. Our Solutions
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Custom Workholding: We use specialized fixtures that provide 360-degree support to the thin-wall sections, neutralizing clamping stress.
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High-Performance Tooling: By using specialized cutters for aluminum, we maintain a cool cutting temperature and achieve superior surface roughness.
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Comprehensive Verification: All dimensions designated as "Critical" are verified using Coordinate Measuring Machines (CMM) to ensure 100% compliance.
V. Factory Commitment
We specialize in transforming raw castings into "plug-and-play" precision components. Our team ensures that every technical requirement, from the Sa2.5 sandblasting to the aging treatment, is executed to the highest industrial standard.