Custom Precision Alloy Steel 5-Axis Machined Parts
Overview
XCM CNC machines alloy steel 5-axis parts in Shenzhen, including angled holes, inclined faces and side recesses on curved shift forks, profiled load-bearing parts and multi-angle connectors. Five-axis operations primarily use imported machines from DMG and Matsuura, with machining routes determined by the CAD model, fixtures and part orientation. The company is certified to ISO 9001, ISO 13485, IATF 16949 and GJB9001C. The minimum order is 1 piece, with prototypes in 3-7 days and standard orders in 10-15 days. Equipment listed for this machining service includes DMG 80mono, Mazak I-100S, Matsuura MX-520, Brother, Taichung, Qiao Feng CNC 3016-4A, Shenyang CK61125X2000.
Key Capabilities
- Materials: 40Cr, 42CrMo; other alloy steel grades reviewed by specification
- Tolerance: +/-0.003 mm (+/-0.00012 inch), IT5 or IT6 accuracy, +/-0.01 mm shaft/bore fits; h6/H7 available
- Surface Finish: Milled Ra 3.2 um; finish milled Ra 1.6 um; turned Ra 0.8 um; lapped Ra 0.4 um; polished Ra 0.2 um; precision polishing up to Ra 0.015 on selected critical areas
- GD&T: Profile 0.02 mm (free-form / 5-axis surfaces), position 0.015 mm, coaxiality 0.012 mm, circular runout 0.01 mm, cylindricity 0.011 mm / 1030 mm
- Max Size: 5-axis 800 x 600 x 900 mm; 3-axis milling 3000 x 1600 x 1400 mm; turning diameter 1250 x 2000 mm
- Heat Treatment: Quench and temper, carburizing, or nitriding by grade and final condition, depending on grade, drawing and order requirements
- Thread: M1.4 to M220; NPT / BSP / G / PT pipe threads; go/no-go gauge inspection
- Precision Limit: +/-0.003 mm dimensional, roundness 0.006 mm, hole-pattern position 0.015 mm (specific features, by drawing review)
Alloy Steel 5-Axis Curved Profile Machining Accuracy
Complex alloy steel surfaces can achieve a profile tolerance of 0.02 mm through 5-axis machining, suitable for free-form parts such as curved shift forks and profiled load-bearing components. The single-part 5-axis machining envelope is 800 x 600 x 900 mm, with a maximum impeller diameter of 800 mm. Profile is verified by CMM against the CAD model and datum definitions.
Alloy Steel Multi-Face Single-Setup Machining for Angled Holes
Multi-face machining in a single setup supports maximum dimensions of 600 x 1200 x 500 mm and can reduce relocation error between angled holes and mounting faces. Hole-pattern position can be controlled to 0.015 mm, with angular tolerances of +/-0.1 degrees for tapered holes and countersinks. Undercuts can be addressed using special tools, multiple setups or EDM.
Alloy Steel Deep Cavity and Side Recess Machining Limits
Alloy steel cavities normally support a depth-to-width ratio of 4:1, increasing to 5:1 with extended tools. The minimum internal corner radius for end milling is R0.5 mm; for a cavity depth of 40 mm, an internal radius of at least R1.0 mm is recommended. Side recesses have a minimum slot width of 0.3 mm. At a slot width of 25 mm, maximum depth is 100 mm.
Alloy Steel Precision Finishing and CMM Inspection
Alloy steel can distort slightly after quenching and tempering or nitriding, so critical mating surfaces generally retain machining allowance for finishing after heat treatment. After finishing, turned outside diameters can achieve Ra 0.8 um, lapped surfaces Ra 0.4 um and roundness 0.006 mm. Inspection uses a Hexagon Inspector Classic 06.08.06 CMM and Leader NCA8106. A surface roughness tester measures roughness against ISO 1302 drawing requirements.
Specifications
| Product Name | Custom Precision Alloy Steel 5-Axis Machined Parts |
|---|---|
| Manufacturer | XCM CNC (Shenzhen Xinchuangmeng Co., Ltd), Shenzhen, China |
| Factory Location | Shenzhen, Guangdong, China |
| Quality System | ISO 9001, ISO 13485, IATF 16949, GJB9001C |
| Machining Process | 5-axis CNC machining |
| Material | Alloy steel |
| Material Grade | 40Cr, 42CrMo; other grades reviewed against specification and material certificate |
| Tolerance | +/-0.003 mm on suitable precision features; IT5 or IT6; h6/H7 fits |
| Precision Tolerance | Profile 0.02 mm, position 0.015 mm, roundness 0.006 mm, coaxiality 0.012 mm |
| Surface Roughness | Ra 3.2 / 1.6 / 0.8 / 0.4 / 0.2 um; Ra 0.015 on selected critical areas |
| Surface Treatment | Nickel, zinc, or chrome plating, 3-20 um coating thickness, depending on grade, drawing and order requirements |
| Max Part Size | 5-axis 800 x 600 x 900 mm; 3-axis 3000 x 1600 x 1400 mm; turning diameter 1250 x 2000 mm |
| Inspection | Equipment: Hexagon Inspector Classic 06.08.06, Leader NCA8106, WanHao Rational VMS-3020G, TRIMOS 600L; Documents: Dimensional inspection report, CMM report, FAI report, material certificate |
| Application | Curved transmission fork, multi-angle reducer mount, spatial linkage connector, aerospace actuator fitting |
| Key Features | Curved profiles, inclined faces, angled holes, side recesses, multi-direction mounting faces |
| Critical QC Requirements | CAD profile, curved surface to mounting datum relationship, angled-hole position, final dimensions after heat treatment |
| MOQ | 1 piece |
| Typical Lead Time | Prototype 3-7 days; standard 10-15 days |
| Drawing Formats | STEP, IGES, STP, DWG, PDF with dimensions |
| Heat Treatment | Quench and temper, carburizing, or nitriding by grade and final condition, depending on grade, drawing and order requirements |
Applications
Curved Transmission Shift Forks and Profiled Connectors
Typical parts: Curved transmission shift fork, profiled drive connector
Fork openings, curved support areas and inclined mounting faces work together to fit the spatial arrangement of shifting or drive mechanisms. Alloy steel grade and heat treatment condition are selected according to load and contact requirements. Relevant capabilities: 5-axis surface profile of 0.02 mm and a single-part envelope of 800 x 600 x 900 mm.
Multi-Angle Joint Connectors and Reducer Mounts
Typical parts: Multi-angle joint connector, profiled reducer mount
Joint connectors and mounts often combine inclined mounting faces, angled holes and side recesses in one part to connect drive interfaces facing different directions. Relevant capabilities: multi-face machining in one setup up to 600 x 1200 x 500 mm and hole-pattern position of 0.015 mm.
Spatial Linkage Joints for Construction Machinery
Typical parts: Spatial linkage joint, multi-face load-bearing connector
Spatial linkage joints connect construction machinery mechanisms through faces and angled holes in several directions. The relative positions of holes and load-bearing faces directly affect assembly. Relevant capabilities: perpendicularity of 0.02 mm / 1000 mm and threads from M1.4 to M220.
Landing-Gear Connectors and Actuator Fittings
Typical parts: Landing-gear connector, profiled actuator joint
These connectors may include curved profiles, inclined connection faces and holes in multiple directions. Material, geometry and machining requirements for aviation-related parts are evaluated against drawings and acceptance requirements. Relevant capabilities: a GJB9001C quality system, with CMM and FAI reports available.
Why Choose Us
Quality Systems and Equipment for Multi-Face Alloy Steel Parts
We operate under ISO 9001, ISO 13485, IATF 16949 and GJB9001C quality systems and use equipment from DMG, Mazak, Matsuura and Brother. Complex surfaces and mounting features in multiple directions can be verified through CMM and profile inspection plans.
Evaluating Five-Axis and Finishing Routes by Tool Access
Angled holes, inclined faces and side recesses are evaluated for 3-axis, 3+2-axis or 5-axis routes based on the CAD model and fixtures. Where precision finishing is required, grinding or EDM operations are evaluated against the drawing. Undercuts and heat treatment condition are included in the process plan.
Tiered Equipment Strategy for Low-Cost CNC Machining, Quality-Assured Production
XCM CNC uses four tiers of CNC equipment from mainland China, Taiwan, Japan, and Europe and the United States. Roughing and routine operations with less demanding tolerances run on mainland Chinese or Taiwanese machines, while surface finishing and high-precision operations use imported machines such as DMG and Mazak. Matching equipment to the accuracy the part requires avoids using machines with higher hourly costs for simple work and reduces machining costs while meeting drawing requirements.
Inspection Reports Accompany Delivery for Incoming Inspection
Every batch includes a dimensional inspection report. New projects can include FAI reports in the customer’s format, along with CMM reports and material certificates. Inspection datums in the reports match the customer drawings so receiving inspection can compare them directly.
Sample Approval before Batch Production
Complex alloy steel parts are prototyped first, with a sample lead time of 3-7 days. Batch production starts after customer approval. Production reuses the fixtures and inspection plans approved during prototyping to reduce variation between batches. For projects involving unpublished designs, an NDA can be signed before drawings are submitted.
FAQ
What model and datum information should I provide for a 5-axis alloy steel quote?
Provide a complete 3D model and 2D drawings identifying critical mounting faces, hole locations, profiles and inspection datums. Include the material grade, as-supplied condition, tolerances, quantity and intended use. Accepted formats are STEP, IGES, STP, DWG and dimensioned PDF.
Can 5-axis machining reach every undercut?
Five-axis machining cannot reach every undercut. Feasibility depends on tool angle, tool extension, surrounding geometry and fixtures. The minimum internal corner radius from end milling is R0.5 mm. Features requiring perfectly sharp internal corners need EDM or a design adjustment.
How does alloy steel hardness affect a complex machined part?
Machining sequence, tool access and finishing allowances for complex parts are evaluated against the specified grade, as-supplied condition and drawing. Specify target hardness, case depth and allowable distortion in the drawing or order. Heat treatment report availability depends on supplier capability and order requirements.
Is there a minimum order for 5-axis alloy steel prototypes?
The minimum order is 1 piece, so single prototypes can be ordered. Samples are generally delivered in 3-7 days and use the same machining accuracy as production parts. Batch production is scheduled after sample approval.
How are heavy or contoured alloy steel parts packaged?
Standard packaging is foam plus a carton. Heavy parts or parts with precision curved surfaces can be packed in wooden crates.
Can you sign an NDA before reviewing my drawings?
Yes. An NDA can be signed before you submit drawings and 3D models. Drawings and acceptance requirements for aviation, medical and other projects can then be provided together for evaluation.
What are the usual prototype and production lead times?
Prototypes usually take 3-7 days and standard orders usually take 10-15 days. Complex surfaces, fixtures and order quantity affect actual lead time, which is evaluated against the drawings.
What are the payment, shipping and packaging options?
Payment options are T/T, PayPal, Western Union. Shipping options are DHL / FedEx / UPS / Sea freight. Packaging options are Foam + carton / wooden crate.
Request a CNC Machining Quote from XCM CNC
Send us your drawings. Our team will review the file and reply with a machining quote. MOQ: 1 piece, with competitive low-cost pricing.
