EMP Tech Co.,Ltd
EMP Tech Co.,Ltd
Contact Us
Please fill in the form below and our professionals will contact you within 12 hours! For a more prompt reply, you may reach us by phone call or WhatsApp: +86-180-2619-3705.
What is the Post-treatment of Aluminum Casting?

What is the Post-treatment of Aluminum Casting?

What is the Post-treatment of Aluminum Casting?

Casting post-treatment is the last process in aluminum casting production, which exerts important influence on the quality. But different post treatment has different corresponding effect. For example, heat treatment is used to improve or change the original structure of aluminum casting to eliminate the internal stress, ensure casting performance and prevent casting deformation and damage.

The heat treatment of aluminum casting aims at different working conditions, generally including quenching, annealing, normalizing, as-cast quenching and tempering, artificial aging, stress relieving, softening and graphitization, etc. For example, casting requires high wear resistance and sufficient toughness whose internal structure should be austenite. For this reason, it is necessary to quench the casting that can be heated to the austenite region to make it completely austenitic, and then quenched and chilled quickly so that the austenite has no time to change and keep down.

The post-treatment of aluminum casting is divided into three aspects: correction, repair and surface finishing.

1. Correction

Because some castings will be deformed in different degrees during solidification, cooling and heat treatment, making some dimensions are out of tolerance. It is necessary to repair them by means of correction. Correction is mainly carried out at normal temperature or warm state by mechanical force. When the deformation is too large, high temperature correction can also be carried out in the heating furnace by casting dead weight or external pressure weight.


2. Repair

The external defects of aluminum castings are mainly repaired by welding.


3. Surface finish

Casting surface roughness and unevenness are generally polished by suspension and high-speed grinding wheels.


Related News
  • 6 Tips For Controlling Product Quality

    6 Tips For Controlling Product Quality

    High-quality products are manufactured, managed, and controlled, not tested. Quality control is a systematic project, with its own rules and unique control methods; if you do not master the correct ...
  • Notes for Pressure Die Casting Components

    Notes for Pressure Die Casting Components

    Ⅰ.Testing content of pressure die casting componentsDie castings are widely used in various fields. The test content of each product is also different.1. Casting size: The shape and size of the die-c...
  • Top 5 industries related to electric vehicles

    Top 5 industries related to electric vehicles

    1. Automotive Parts ManufacturingAutomotive parts manufacturers are the first to bear the brunt. Nowadays, the development of automobiles is becoming larger and larger, and the rise of electric vehicl...