PRODUCT DESCRIPTION

What are the Differences Between 6061 and 7075 Aluminum?

The main differences between 6061 and 7075 aluminum are the following attributes:

• • Alloy Series & Chemical Composition
  • Mechanical Properties
  • Fabrication Considerations
  • Applications

Alloy Series and Chemical Composition

The first difference between 6061 and 7075 can be found right away just by looking at their number designations. 6061 is in the 6XXX series of aluminum alloy grades and 7075 is in the 7XXX series. Knowing this, without even digging into their individual material data sheets, it can be deduced that 6061 will have a higher amount of silicon, and that 7075 will have a much higher amount of zinc. Upon inspection of the exact ranges of the two individual alloys, it can also be noted that both have significant amounts of magnesium, although 7075 has slightly more. 7075 also has greater additions of copper in its chemical makeup.

Mechanical Properties

Both 6061 and 7075 are heat-treatable, so their mechanical properties cannot be compared accurately without assuming the same type of heat treatment. When looking at both alloys in the -T6 condition (meaning solution heat-treated then artificially aged), several noticeable differences are observed. First off is that the tensile strength of 7075-T6 is nearly double that of 6061-T6. The shear strength of 7075-T6 is roughly 1.5 times that of 6061-T6. The former is substantially harder as well.

Fabrication Considerations

6061 nearly always has the edge over 7075 when it comes to fabricating the two aluminum alloy types. This is mostly due to 6061 having a lower hardness and tensile strength. The lower hardness allows it to be machined more easily than 7075. The lower tensile strength means that 6061 is easier to form than 7075. While both materials can be joined by soldering, brazing or adhesives, 6061 is weldable and 7075 is generally considered not weldable. Even though 6061 is considered weldable, care must be taken to select the proper weld filler metal. Post-weld heat treatment and aging may be required to get the weld area back to the original “-T” designation. 7075 is extremely prone to cracking following welding.

Applications

There is much application overlap between the 6061 and 7075 aluminum alloys. As previously mentioned, both are structural grades of aluminum. Both are used for bike parts, aerospace components, and building construction. They differ in these areas on how they are used though. For instance, in the aerospace industry, 7075 may be more likely to be used as a gear or rod, and 6061 may be more likely to be implemented in an area that requires more ductility. With bike parts, some riders prefer the increased strength that comes with the 7075 aluminum alloy. 7075 is more likely to be used for molds and industrial tooling than 6061. Since it is more formable than 7075, 6061 is used more often for tanks, as well as other shapes with rounded contouring.

CNC milling, or computer numerical control milling, is a machining process which employs computerized controls and rotating multi-point cutting tools to progressively remove material from the workpiece and produce a custom-designed part or product. This process is suitable for machining a wide range of materials, such as metal, plastic, glass, and wood, and producing a variety of custom-designed parts and products.

Several capabilities are offered under the umbrella of precision CNC machining services, including mechanical, chemical, electrical, and thermal processes. CNC milling is a mechanical machining process along with drilling, turning, and a variety of other machining processes, meaning that material is removed from the workpiece via mechanical means, such as the actions of the milling machine’s cutting tools.

This article focuses on the CNC milling process, outlining the basics of the process, and the components and tooling of the CNC milling machine. Additionally, this article explores the various milling operations and provides alternatives to the CNC milling process.

Why should you choose RJC

1. High Quality & Competitive Price & Good Service

2. Prompt reply and the experienced engineers to track all the process

3. Advanced equipment and excellent R&D Team.

4. Highly skilled manufacturing process & Strict quality Control System.

5. Small orders supported.

Packaging Details

1.Standard exporting cartons package

2.Cartons packed then with wooden pallet

3.As per customized specifications

Delivery Time

7~30 days upon payment received date

More than 17 YEARS experience in manufacturing Mould,CNC machining,extrusion and plastic injection moulding parts.

More Information:

1. Packing:1piece / polybag,12pcs/carton,30 cartons/pallet

2. Tooling payment term:50%Deposit with the PO,and 30% whend the mould finish
Balance will be paid after send the success of trial sample.

3. Price term:EXW, FOB,CIF and so on

4. FOB port:Shenzhen or Hongkong

5. Certification:ISO9001:2015&TS16949

6. Warranty:2years

Advantages:

1. Own factory,and 80% workers in our company more 10 years.

2. can provide good price.

3. High precision, tolerance can be within ±0.005mm.

4. 14 years export experience.

5. Small order also be welcomed.

6. We can also provide one-stop service,including mould and assembly.

7. All samples will be inspected by CMM before shipment ,and also each step process will be controlled by CMM.

JC Rapid Factory was established in 2002, after over 16 years development ,it has grown up to be one of the highly reputable supplier in termsof the service of mold manufacturing ,injection molding , CNC machining ,CNC lathing and so on .With considering new business strategy , JCRapid decided to built up division of foreign trading with cutting down domestic business in themeanwhile . To a great extent , JC Rapid took advantage of business opportunities to expanding business scope for enterprise further development ,and re-positioning company objective for the future .

Up to now , JC Rapid has dedicated team to support oversea business in terms of business development , engineering support and continuous improvement to guarantee better schedule and quality delivered .