Data information detection process of typical complex parts in rapid investment casting
Before the 3D scanning data detection, the laser 3D scanner needs to be calibrated. The calibration plate is scanned and […]
Before the 3D scanning data detection, the laser 3D scanner needs to be calibrated. The calibration plate is scanned and […]
The blade of diffuser impeller is mainly a complex free-form surface. The conventional measurement method can not complete the mapping
To detect the 3D data of the part, the specific process is to detect the surface geometry of the part
SLS rapid investment casting generally needs three steps: SLS prototype firing, wax impregnation post-treatment and investment casting. Because there is
Through the analysis of the research status at home and abroad, combined with the existing experimental research, and finally according
In the process of rapid investment casting, due to the different rapid prototyping process, the corresponding casting process scheme is
SLS sintering process and material types have a great influence on the sintering results. Most scholars study the influence of
With the continuous rise and popularization of 3D technology, China’s manufacturing industry has gradually achieved upgrading, especially in the mold
Rapid casting (QC) is a new technology formed by combining SLS, SLA, FDM and traditional casting technology. The application object
Traditional investment casting is also known as “wax loss casting”. Because of the high dimensional accuracy and surface quality of
Due to the complexity of squeeze casting process, it is very difficult to measure the internal pressure of squeeze casting
For the interface heat transfer with pressure, there is a definite relationship between the interface heat transfer coefficient and the
The main parameters involved in squeeze casting process include: applied pressure, pouring temperature, initial mold temperature and coating thickness. These
The experimental measurement of interface pressure and internal temperature of squeeze casting and the calculation of interface heat transfer coefficient
A 1000KN hydraulic press was used to apply the external pressure of squeeze casting, and a medium frequency induction aluminum
The core idea of the optimization method is that the solution of the heat transfer coefficient of the casting die
The key to study the heat transfer behavior of casting die interface is the temperature change near the interface. It
Although the extrapolation method is relatively simple to calculate the interface heat transfer coefficient, the calculation error is easy to
The direct problem of heat transfer calculation is to solve the temperature distribution in the calculation area when the boundary
Under the background of the research on the heat transfer behavior and pressure transfer law of squeeze casting die interface,
It can be seen from the characteristics of squeeze casting that the temperature distribution and stress distribution inside the casting
Since the emergence of centrifugal casting technology, many scholars at home and abroad have studied the centrifugal casting process. At
(1) Taking the force of roller supported horizontal centrifugal casting machine as the research object, the calculation method of the
(1) In horizontal centrifugal casting with roller support, the shape error and surface morphology of the two relative moving contact
As the ball valve can be opened and closed only by turning the ball 1 / 4 circle, it belongs
Ball valve has the advantages of small flow resistance, quick opening and closing and easy pigging, which makes it widely
The main functions and purposes of alloy heat treatment are as follows: one is to improve the process performance of
The driving device adopts direct push electro-hydraulic push rod. The speed of the electro-hydraulic push rod is fast, up to
The inside of valve plate also needs pouring refractory layer, and the minimum width of valve plate is determined according
In order to isolate the high temperature of the pipeline, the high temperature resistant lining is poured inside the cylinder