With the purpose of customer concept, to provide customers with satisfactory product design.
Forging is a manufacturing process that involves shaping metal through the application of force. The forging process typically involves heating the metal to a specified temperature, then applying compressive force to shape it into the desired form. Here is a general process flow for forging:
Raw material➝Steel detection➝Steel marking and blanking➝Heating (including tempering)➝Forging processing➝Forging stock inspection➝Heat preservation and normalizing after forging➝Rough machining➝Heat treatment➝CNC finishing➝Product appearance inspection➝Mechanical property test➝Surface treatment and packaging➝Loading and delivery
01. Raw material
According to the customer’s drawing material requirements, select the appropriate raw material brand and specifications.
02. Steel detection
In order to ensure the quality of raw materials, the chemical composition of raw materials should be rechecked before production.
03. Steel marking and blanking
According to the product requirements, the ingot and billet are cut into reasonable size and weight.
04. Heating (including tempering)
The cutting raw materials are heated according to the product process to ensure that the heating temperature meets the material requirements.
05. Forging processing
The forging equipment is put into the forging equipment by the manipulator. According to the size of raw materials and the requirements of forging ratio, the corresponding pier thickness, elongation and other processes are carried out to monitor the size of forgings in real time, and the forging temperature is controlled by infrared thermometer.
The preliminary inspection of the forging blank is mainly the inspection of appearance and size. In terms of appearance, it is mainly to check whether there are defects such as cracks. In terms of size, it is necessary to ensure that the blank allowance is within the requirements of the drawing and make a record.
07. Heat preservation and normalizing after forging
It is mainly to refine the grain, uniform the structure and eliminate the internal stress. Improve defects : Widmanstatten, coarse grains and other overheating defects and banded structure. Prepare for final heat treatment.
08. Rough machining
After the forging is basically formed, various forgings of different specifications are processed according to the product requirements, leaving finishing allowance.
09. Heat treatment
A comprehensive process of heating the forging to a predetermined temperature, holding for a certain time, and then cooling at a predetermined speed to improve the internal structure and properties of the forging. Its purpose is to eliminate internal stress, prevent deformation during machining, and adjust hardness to make forgings conducive to cutting. After heat treatment, the forgings are air-cooled or water-cooled, oil-cooled, etc.according to the requirements of the material. Including : normalizing, quenching and tempering, quenching and other heat treatment.
10. CNC finishing
The products after rough machining and heat treatment are precision processed by CNC machine tools, so that the dimensional accuracy and smoothness of the products fully meet the requirements of forging drawings.
11. Product appearance inspection
The product appearance inspection conforms to the size requirements on the customer’s drawings. Ultrasonic testing ( UT ), magnetic particle testing ( MT ), hardness, carburization and other drawing requirements were tested.
12. Mechanical property test
In order to meet the needs of customers, it is necessary to test the mechanical properties of forgings, mainly yield, tensile, impact and metallographic tests. Meet the needs of all kinds of forgings detection.
13. Surface treatment and packaging
After quality inspection, the finished forgings are processed by anti-rust spraying and painting, and then packed into the finished product warehouse for shipment.
14. Loading and delivery
Transfer the goods from the finished product warehouse to prepare for loading and shipping to customers.