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Address: Wensheng Industrial Park, Sanlian Village, Fenggang Town, Dongguan City, Guangdong Province, CN
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Aluminum CNC Machining Gallery

Lodestar Precision Aluminum CNC Machining Service

Lodestar Precision provides an extensive range of surface finishing options aimed at enhancing the surface characteristics of CNC-Milling parts.
with over 50 CNC machining equipment,we offer comprehensive machining solutions including 5-axis machining, CNC milling, CNC turning, gear hobbing, and prototyping.

Comparison Of Common Aluminum Alloys

Physical properties
Aluminum Grade	Density	Corrosion resistance	Melting Point	Magnetism	Coefficient of Thermal Expansion	Thermal Conductivity	Electrical properties
6061-T6	2.70 g/cm³	High	585°C (1,085°F)	Non-magnetic	Around 23.6 μm/m-K	167 W/m-K	43% IACS (International Annealed Copper Standard)
7075-T6	2.81 g/cm3	Moderate	475°C (887°F)	Non-magnetic	23.5 x 10-6 m/m-K	130 W/m-K	21% IACS
5083-H111	2.68 g/cm³	High	570°C	Non-magnetic	23.8 x 10^-6 m/m-K	118 – 128 W/(m·K)	0.058 x10^-6 Ω .m
6082	2.7 g/cm3	Excellent	555°C (1031°F)	Non-magnetic	24 x 10-6 K-1	180 W/m.K at 20°C	30% IACS (approximate, in T6 condition)
Mechanical properties
Aluminum Grade	Ultimate Tensile Strength (UTS)	Yield Strength (0.2% Offset)	Elongation at break	Modulus of Elasticity (Elastic Modulus)	Fatigue Strength	Brinell Hardness	Vickers hardness
6061-T6	310 MPa (45,000 psi)	275 MPa (40,000 psi)	12%	69 GPa	96.5 MPa (14,000 psi)	95 HB	107 HB
7075-T6	510–540 MPa (74,000–78,000 psi)	At least 430–480 MPa	6%-11%	71.7 GPa	159 MPa (23 ksi)	150 HB	140-150 HV
5083-H111	270-350 MPa	125 MPa	13%	68.9 GPa	150-200 MPa	60 HB	74 HV
6082-T6	310 MPa (45,000 psi)	255 MPa	12-13%	70 GPa	90 MPa	95 HB	95-105 HV

Surface Finishes For CNC Aluminum Parts

Lodestar Precision provides an extensive range of surface finishing options aimed at enhancing the surface characteristics of CNC-Milling parts.


As machined	Sand blasting	Polishing	Anodizing
The part exhibits noticeable tool marks and potential sharp edges and burrs, which can be removed upon request.	Providing machined parts with a smooth and uniform matte surface finish to eliminate some tool marks, depending on the sandblasting particles\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ size.	Achieving a smooth and glossy surface can be done through manual polishing in various directions or by utilizing a chemical polishing treatment.	It splits into Type II (color or clear) or Type III (hard coat) anodizing processes, unable to conceal tool marks. The colors of colored anodization are based on the Pantone color chart.

Chromate Conversion Coating	Surtec 650	Plating	Powder Coated
It provides corrosion resistance and enhance the adhesion of subsequently applied paints or coatings on metal surfaces, particularly aluminum, and alloys.	It improves corrosion resistance, enhancing paint adhesion, and providing a base for subsequent organic coatings.	It includes Nickel Plating, Silver Plating, Gold Plating, Zinc Plating, Chrome Plating, Tin Plating, etc, This can include improving corrosion resistance, adding wear resistance, enhancing conductivity, providing decorative finishes, or facilitating solderability.	Powder coating is a method of applying a durable and protective finish to metal surfaces. It involves spraying a dry powder onto the surface, which is then cured under heat to form a hard, smooth coating. Powder coating offers excellent resistance to corrosion, chemicals, and abrasion, and it can be applied in a wide range of colors and finishes for both decorative and functional purposes.