Journal of Jilin University(Engineering and Technology Edition) ›› 2024, Vol. 54 ›› Issue (11): 3148-3157.doi: 10.13229/j.cnki.jdxbgxb.20230026

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Simulation and experimental validation of spinning process for double-cone-shaped copper alloy dosage form cover in pharmaceutical applications

Yan-qing LI1(),Sheng-xu LU1,Yong-zhou LI1,Ming-zhi HUANG1,Tao HUANG2()   

  1. 1.School of Electromechanical Engineering，Changchun University of Science and Technology，Changchun 130022，China
    2.Changchun Institute of Equipment and Technology，Changchun 130012，China
  • Received:2023-01-09 Online:2024-11-01 Published:2025-04-24
  • Contact: Tao HUANG E-mail:liyanqing@cust.edu.cn;13843082365@163.com

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Abstract:

This paper mainly focuses on the simulation and experiments of spinning process of copper alloy charge liner. Based on the Simufact/Ansys platform， a three-dimensional finite element model of biconical copper alloy charge liner spinning is established. The stress and strain distribution of the charge liner， during the process of power spinning， is analyzed by numerical simulation method， and the conclusion of analysis is that higher stresses lie in the front area and biconical transition arc area of the charge liner. Aiming at stress-strain distribution of charge liner after spinning， the influences of spinning wheel installation angle， radius of the spinning wheel and the spinning wheel feed ratio on the stress and strain distribution are respectively obtained. The spinning experiments are carried out with the optimized process parameters， the experimental results show that the size of the charge liner meets the accuracy requirements， which indicates that the simulation method can play a guiding role in the actual spinning processing.

Key words: biconical copper alloy charge liner, power spinning, stress and strain

CLC Number: 

  • TG306

Table 1

Copper alloy main chemical composition"

元素百分比/%元素百分比/%
Cu99.96S0.01
Ag0.005Fe0.01
Zn0.01P0.005

Fig.1

Schematic diagram of the principle of strong"

Fig.2

Schematic diagram of variable wall thickness sheet"

Fig.3

Upward spinning wheel track"

Fig.4

Two-dimensional diagram of the spinning wheel"

Fig.5

Synchronous fixture design drawings"

Fig.6

Diagram of synchronous fixture"

Table 2

Spinning parameters for different solutions"

方案

旋轮工作角

β/（°）

圆角半径R

/mm

进给比f

/（mm·r-1）

145100.30
26080.30
360100.30
460150.30
560100.20
660100.45

Fig.7

Finite element model of biconical charge liner"

Fig.8

Grid division"

Fig.9

Strain cloud map（Forming state 95%）"

Fig.10

Stress cloud map（Forming state 95%）"

Fig.11

Strain cloud map（Forming state 95%）"

Fig.12

Stress cloud map（Forming state 95%）"

Fig.13

Strain cloud map（Forming state 95%）"

Fig.14

Stress cloud map（Forming state 95%）"

Fig.15

Equivalent force distribution"

Fig.16

Equivalent plastic strain distribution"

Fig.17

Qualified spin test specimen"

Fig.18

Unqualified spin test specimen"

Table 3

Qualified work-piece wall thickness dimension measurement results"

等分点壁厚/mm

第1条

母线

第2条

母线

第3条

母线

第4条

母线

12.842.852.832.84
22.862.872.852.87
32.802.832.842.86
42.832.822.802.83
52.752.732.742.75
62.732.772.752.71
72.642.662.652.68
82.662.662.662.62
92.682.672.632.65
102.612.602.632.64
前端壁厚差0.060.050.050.04
后端壁厚差0.070.070.030.06
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