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HỘI THẢO QUỐC TẾ ATiGB LẦN THỨ CHÍN - The 9 ATiGB 2024 149

0.01533 mm, while in SKD61 steel it is 0.00267 mm.
However, due to the relatively limited. number of
shots, it cannot be concluded that the level of abrasion
in the two mold cavities is different. It is only possible
to observe the variation in dimensions and geometry
of the inserts throughout the casting process.
5. ACKNOWLEDGEMENTS
This research would not have been possible
without the generous support from the board directors
of Advanced Industry & Education Equipment Co.,
Ltd. (AIE Saigon), who sponsored us in the process of
measuring and inspecting 3D scan results.
REFERENCES
Fig. 5. Broken pin on SKD61 cavity insert [1]. Bill Andresen, “Die Casting Engineering A Hydraulic,
Thermal, and Mechanical Process”, 1st ed. New York:
The actual height of the gate is also expanded under Monticello, 2005.
the influence of hot die material flow moving in the [2]. Nguyen Ngoc Ha, “Cac phuong phap cong nghe duc dac biet”,
mold. According to 3D scanning data, for the SKD61 Nxb. Đai hoc Quoc gia Tp Ho Chi Minh, 2006.
core insert, after 300 shots, the gate height has been [3]. Nguyen Huu Dung, “Cac phuong phap duc dac biet”, Nxb.
expanded by 0,039 mm. Similarly, with an FDAC core Khoa hoc và Ky thuat, Ha Noi.
insert, the gate also expands by 0.062 mm. [7] The [4]. Nguyen Huu Loc, “Giao trinh Quy hoach và phan tich thuc
reason for this difference may be that the hardness of nghiem” Nxb. Đai hoc Quoc gia Tp Ho Chi Minh, 2021.
FDAC steel is lower than that of SDK61 steel. [5]. Gioi thieu tong quan ve phan mem Minitab, link:
Use the Anova One-way Analysis method to https://minitabvietnam.com/minitab-gioi-thieu-tong-quan-ve-
examine the difference in core insert deformation phan- mem/
between two types of steel, FDAC and SKD61 after [6]. Acamedia, Gating System Design for a Multi-Cavity Die-
300 shots on Minitab software. The results indicate CastingDie,link:https://www.academia.edu/36591776/Gating_
System_Design_for_a_Multi_Cavity_Die_Casting_Die.
that FDAC steel core inserts have a greater
deformation value than SKD61 as shown in Table 2. [7]. Tong quan phuong phap scan 3D, link:
smartsolutions.com/cam-nang/cong-nghe-

https://3d-
Table 2. Deformation value between 3d/quet-3d-loi-ich-cua- scan-3d/.
two types of steel on core inserts [8]. Tong quan ve phần mem Inspire Cast link: https://altair.com
/inspire- cast.
Material N Mean StDev 95% CI
FDAC 6 0.01533 0.01597 (0.00472. 0.02594)
SKD61 6 0.00267 0.00413 (-0.00794. 0.01328)
Conduct a similar analysis with two cavity inserts
of FDAC and SKD61.
The results are the same with the analysis of core
inserts, indicating that FDAC steel cavity inserts have
a greater wearing value than SKD61 as shown in
Table 3.
Table 3. Wearing value between
two types of steel on cavity inserts
Material N Mean StDev 95% CI
FDAC 6 -0.00633 0.00427 (-0.01013. -0.00254)
SKD61 6 -0.00217 0.00407 (-0.00596. 0.00163)
4. CONCLUSION
The two pairs of inserts, FDAC and SKD61,
generally show changes during the 300-shot process.
The average wear value after 300 shots for the FDAC
steel cavity insert is -0.00633 mm, while in SKD61
steel it is - 0.00217 mm. The average deformation
value after 300 shots for core inserts in FDAC steel is

ISBN: 978-604-80-9779-0