Machining Cnc Machining Component Custom Metal Machining Precision Alumium Parts Cnc Machining

Detailed Technical and Safety Specifications for Milling Lithium Battery Casings:

1. Material Properties and Tool Selection

--3003 aluminum alloy: As the mainstream casing material (tensile strength 140-180 MPa), high-speed milling requires diamond-coated carbide tools. A recommended speed is 150-200 m/min.

--304 stainless steel: During machining, the speed should be reduced to 80-120 m/min, and a high-pressure coolant system should be used to prevent tool overheating.

--Tool Geometry Optimization: Given the characteristics of composite materials, a helical-edged tool with a rake angle of 12°-15° is recommended to reduce cutting force fluctuations.

2. Precision Machining Technology

--Anti-Deformation Control: A shaft and reinforced sleeve fixture structure is used, coupled with a vision positioning system to compensate for machining errors (accuracy up to 5 microns).

--Deburring: A ceramic fiber abrasive brush is used for secondary milling to ensure no residual metal burrs.

--Threaded Hole Machining: High-pressure water targeted cleaning technology is used for M4/M6 threaded holes to thoroughly remove aluminum chips.

3. Safety Measures

--Dust Control: A negative pressure dust removal system is equipped to comply with OSHA standards to prevent metal dust accumulation.

--Explosion-Proof Design: Explosion-proof devices are installed in the machining area to prevent explosions caused by electrolyte volatilization.

--Process Monitoring: Real-time detection of cutting force fluctuations (±5% threshold) to prevent abnormal tool wear.

4. Typical Application Cases

--Module Disassembly: SCHNOKA milling machines process square/circular modules (160-1200mm) and mill guide rail weld points.

--Sealing Pin Processing: Intelligent milling machines enable fully automated sealing pin milling (<2 minutes per piece).

--Oil Logging Battery: Specialized fixing components enable housing groove milling in high-temperature environments up to 100°C.

Product attributes

CNC workshop

CNC workshop

CNC workshop

CNC workshop

CNC workshop

CNC workshop

CNC Milling Parts 

Explore our CNC Milling Parts Gallery to see precision-crafted components manufactured with high accuracy and quality.

Tolerances for CNC Milling

Core Characteristics of Milling Processing

1. Multi-Edge Cutting and Efficiency

-- Milling cutters have multiple cutting edges (e.g., end mills with 4-6 edges), which can participate in cutting simultaneously, sharing the load and improving efficiency (30%-50% higher than single-edge tools).

-- Suitable for large feed rates or high cutting speed machining, such as surface milling with a cutting depth of up to 5-10mm.

2. Intermittent Cutting and Impact Vibration

-- The cutter teeth engage and disengage from the workpiece periodically, causing fluctuations in cutting force, requiring machines with good rigidity (e.g., heavy-duty milling machines) to ensure precision.

-- Intermittent cutting facilitates tool cooling and extends tool life, but durable tool materials (e.g., carbide) must be used.

3. Process Flexibility-- By changing tools (e.g., face mills, T-slot mills), it can process complex features such as flat surfaces, grooves, gears, and curved surfaces.

-- Supports multi-axis linkage (e.g., five-axis milling) to achieve machining of three-dimensional complex profiles (e.g., mold cavities).4. Controllable Surface Quality-- Adjusting cutting parameters (e.g., feed rate, speed) can control surface roughness (Ra 0.8-12.5μm).

-- End mills' secondary cutting edges can polish surfaces with roughness down to Ra 0.4μm.Range of Milling Processing

1. Basic Processing-- Flat/Step Surfaces: Face mills (end mills) process large flat surfaces, three-edge mills process steps.

-- Grooves/Keys: End mills mill straight grooves, keyway cutters process key slots (accuracy IT8-IT9).2. Complex Feature Processing

-- Gears/Threads: Modular shaped end mills process gears, thread mills process threads.

-- Cavities/Molds: Ball end mills process three-dimensional curves (e.g., injection molds).

2. Special Processing

-- Cutting/Indexing: Saw blades mill cut workpieces, dividing heads achieve evenly spaced holes/teeth.

-- Special-Shaped Slots: Dove-tail milling cutters and T-slot mills process specific connection structures.Typical Application Scenarios

-- Automotive Manufacturing: Milling flat surfaces of engine blocks, processing gear case shells.

-- Aerospace: Frameworks of fuselages, structural components of landing gear.

-- Electronics: Mounting slots for circuit boards, arrays of heat sink fins.

Comparison with Other

ProcessesTurning:

Suitable for rotating parts (e.g., shafts), milling is better for polyhedral/complex profiles.

Drilling:

Milling can replace some drilling operations (e.g., large diameter holes) but with higher precision.