Product Description

 

 

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Certifications

CNC machining has entered this CHINAMFG of rapid development, many industries can use CNC machining, such as aviation, medical, automobile, motorcycle, furniture, construction, sheet metal, machinery and so on

 

 

 

Packaging & Shipping

Our packaging depends on what packaging you need, we can do it all

Some of our samples

Here are some of our products, please contact us if you are interested!

 

 

 

After Sales Service

 

 

From production to shipment, the product has gone through 3 quality inspection processes. If you still receive the goods with problems, please contact us immediately, we will deal with it

 

FAQ

Q1: Where is your factory?
DSR: We are located in HangZhou, ZheJiang Province, China.
Q2: What information do I need to provide to get a quote?
DSR: Product drawings (material, structure, size, surface treatment requirements, etc.) and MOQ.
Q3: What is the minimum order quantity?
DSR: You can make as many as you want. I just need to remind you that there is a world of difference between the price of 1 and the price of 1,000.
Q4 Can you provide free samples?
DSR: Sure, but you’ll have to pay for the sample and return it when you order it. Our engineers work very hard to make samples. If there are no follow-up orders, I think they will be very sad.
Q5:DSRJBD: Usually 5-15 days. It depends on the quantity you order
Q6: Is it safe to send you my painting? Would you divulge the secrets of my design?
DSR: Yes, we can CHINAMFG a confidentiality agreement in advance before you send the drawings
Q7: How do I know the progress of my project without going to the factory?
DSR: You can always ask our sales staff to provide you with photos and videos.
Q8: There are some other questions I’d like to know.
DSR: Don’t hesitate. Please contact us immediately. It’s our pleasure to talk to you. I hope we can cooperate

Thank you for watching our products, and look CHINAMFG to working with you for CHINAMFG cooperation

 

 

 

 

 

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Casting Method: Sand Casting
Casting Form Material: Metal
Casting Metal: Cast Steel
Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

cast aluminium

Can cast aluminium be welded, and if so, what techniques are used?

Yes, cast aluminium can be welded, but it requires specific techniques and considerations due to the unique characteristics of the material. Here’s a detailed explanation:

Cast aluminium is a commonly used material in various industries due to its lightweight, high strength-to-weight ratio, and good corrosion resistance. Welding cast aluminium can be challenging because it has different properties compared to wrought aluminium, primarily due to its microstructure and the presence of impurities and inclusions.

When welding cast aluminium, several important factors should be considered:

  • Preparation and Cleaning:
  • Prior to welding, thorough cleaning of the cast aluminium surfaces is crucial. Any contaminants, such as oils, dirt, or oxide layers, should be removed to ensure proper fusion and minimize the risk of defects in the weld.

  • Preheating:
  • Preheating the cast aluminium part can help reduce the thermal stresses and minimize the potential for cracking during welding. The preheating temperature and duration depend on factors such as the alloy type, part thickness, and welding method.

  • Welding Techniques:
  • Various welding techniques can be used for cast aluminium, including:

    • Tungsten Inert Gas (TIG) Welding: TIG welding is commonly used for welding cast aluminium. It involves the use of a non-consumable tungsten electrode to create an electric arc, and a shielding gas (typically argon) protects the weld area from atmospheric contamination. TIG welding allows precise control of the heat input and produces high-quality welds.
    • Metal Inert Gas (MIG) Welding: MIG welding, also known as Gas Metal Arc Welding (GMAW), can be used for cast aluminium. It utilizes a consumable electrode wire and an inert gas shield to protect the weld pool. MIG welding is faster than TIG welding but may require more expertise to achieve good results with cast aluminium.
    • Fusion Welding: In some cases, fusion welding techniques like oxyfuel gas welding or plasma arc welding may be suitable for specific cast aluminium applications. These processes involve the localized melting of the base metal to create the weld joint.
  • Filler Material:
  • The choice of filler material for welding cast aluminium is crucial. Generally, an aluminium-silicon alloy filler wire, such as 4043 or 5356, is used. These alloys have a similar composition to most cast aluminium grades and provide good fusion and mechanical properties.

  • Post-Weld Heat Treatment:
  • After welding, post-weld heat treatment (PWHT) may be necessary to relieve residual stresses and improve the mechanical properties of the weld. The specific PWHT requirements depend on factors such as the alloy composition, part thickness, and application.

  • Weld Quality and Testing:
  • Proper inspection and testing of the welds are essential to ensure their quality and integrity. Non-destructive testing methods, such as visual inspection, dye penetrant testing, or radiographic examination, can be employed to detect any weld defects or discontinuities.

It is important to note that welding cast aluminium can be more challenging compared to welding wrought aluminium due to the potential for casting defects, such as porosity or inclusions, which can affect the weld integrity. Therefore, it is advisable to work with experienced welders who have expertise in welding cast aluminium and understand the specific challenges associated with the material.

In summary, cast aluminium can be welded using techniques such as TIG welding, MIG welding, or fusion welding, provided proper preparation, cleaning, preheating, filler material selection, and post-weld heat treatment are considered. By following appropriate welding procedures and conducting thorough quality inspections, reliable and structurally sound welds can be achieved in cast aluminium parts.

cast aluminium

How does cast aluminium withstand environmental and weather conditions?

Cast aluminium exhibits several characteristics that enable it to withstand various environmental and weather conditions. Here’s a detailed explanation:

  • Corrosion Resistance:
  • One of the primary reasons cast aluminium is highly durable in outdoor environments is its excellent corrosion resistance. Aluminium naturally forms a thin oxide layer on its surface when exposed to air, which acts as a protective barrier against corrosion. This oxide layer prevents the underlying metal from coming into direct contact with moisture, oxygen, and other corrosive elements in the environment.

  • Passivation:
  • Cast aluminium undergoes a process called passivation, where the surface of the metal is chemically treated or anodized to enhance its corrosion resistance. Passivation helps create a thicker and more stable oxide layer, making the aluminium even more resistant to degradation caused by exposure to moisture, salts, and pollutants.

  • UV Resistance:
  • Cast aluminium is also highly resistant to UV radiation from the sun. Unlike some other materials, aluminium does not degrade or become brittle when exposed to prolonged sunlight. This UV resistance makes cast aluminium suitable for outdoor applications, as it can maintain its structural integrity and appearance over time without fading or discoloration.

  • Thermal Stability:
  • Aluminium has excellent thermal stability, allowing it to withstand extreme temperature variations without significant changes in its properties. Cast aluminium can expand and contract with temperature fluctuations, making it less prone to warping or cracking due to thermal stress. This property is particularly advantageous in outdoor environments where temperature changes can be substantial.

  • Lightweight:
  • The lightweight nature of cast aluminium contributes to its ability to withstand environmental conditions. Unlike heavier metals such as iron or steel, aluminium is less susceptible to fatigue or structural damage caused by its own weight. This characteristic makes cast aluminium furniture or structures more resistant to deformation or collapse, even under the forces exerted by wind or other external factors.

  • Durability:
  • Cast aluminium is known for its overall durability and long lifespan. It is a robust material that can withstand the rigors of outdoor use, including impacts, vibrations, and mechanical stress. It is not prone to cracking, splitting, or rotting like wood, making it highly durable in various weather conditions.

  • Low Maintenance:
  • Outdoor products made from cast aluminium require minimal maintenance. The inherent corrosion resistance of aluminium eliminates the need for frequent painting or protective coatings. Simple cleaning with mild soap and water, along with occasional waxing or polishing, is usually sufficient to maintain the appearance and performance of cast aluminium products.

The combination of corrosion resistance, passivation, UV resistance, thermal stability, lightweight construction, durability, and low maintenance makes cast aluminium an excellent choice for outdoor applications. It can withstand environmental and weather conditions while retaining its structural integrity, appearance, and functionality over an extended period.

cast aluminium

How is cast aluminium made, and what are the steps in the casting process?

The process of manufacturing cast aluminium involves several steps. Here’s a detailed explanation:

  1. Pattern Creation:
  2. The casting process begins with the creation of a pattern, which is a replica of the desired final product. The pattern can be made from various materials such as wood, metal, or plastic. It represents the shape and dimensions of the finished cast aluminium product.

  3. Mold Preparation:
  4. A mold is created by placing the pattern into a container and surrounding it with a molding material. The molding material can be sand, plaster, ceramic, or a mixture of these materials. The mold is designed to have a cavity that corresponds to the shape of the pattern.

  5. Mold Assembly:
  6. If the casting process requires multiple parts or complex shapes, the mold may consist of several pieces that are assembled together. This ensures that the final mold can be easily removed from the cast aluminium product.

  7. Melting and Pouring:
  8. The next step is to melt the aluminium. This is typically done in a furnace where aluminium scraps or ingots are heated to their melting point, which is around 660°C (1220°F). Once the aluminium is molten, it is poured into the prepared mold through a gating system, which includes channels and sprues.

  9. Solidification:
  10. As the molten aluminium is poured into the mold, it begins to cool and solidify. The cooling rate and time required for solidification depend on the size and complexity of the cast aluminium product. During this stage, the aluminium undergoes a phase change from liquid to solid, taking the shape of the mold cavity.

  11. Shakeout and Cleaning:
  12. After the cast aluminium has solidified and cooled, the mold is removed, typically by shaking or vibrating the mold. The solidified casting, often referred to as a “green casting,” is then separated from the mold material. The casting is inspected for any defects or imperfections, and excess material, such as risers or gating systems, is removed.

  13. Heat Treatment (Optional):
  14. In some cases, cast aluminium products may undergo heat treatment processes to improve their mechanical properties. Heat treatment can involve processes such as annealing, quenching, or tempering, depending on the desired properties and application requirements.

  15. Finishing Operations:
  16. The final step involves finishing operations to achieve the desired surface finish and dimensional accuracy. This may include machining, grinding, sanding, polishing, or applying coatings or finishes to the cast aluminium product. These processes ensure that the product meets the required specifications and quality standards.

The casting process can vary depending on the specific casting method used, such as sand casting, die casting, or investment casting. Each method has its own variations and requirements, but the overall steps mentioned above provide a general overview of how cast aluminium products are made.

China Standard Max Drag High Speed Casting Fishing Wheel Kit Aluminium Cookware Steel Anvil Die Metal Car Cast  China Standard Max Drag High Speed Casting Fishing Wheel Kit Aluminium Cookware Steel Anvil Die Metal Car Cast
editor by CX 2024-04-16