An efficient method for analysis and design of industrial products or process

(Glass Pressing Simulation )

Glass Pressing Simulation Study of glass pressing simulation of high

temp. Software for Pressing simulation (POLYFLOW,

DEFORM) is very expansiveUsed ANSYS for Analysis pressing simulation

Progress Glass Pressing

Hot molten glass

Cold rigid glass

Mould

Material propertyDensity 2214kg/m^3Specific Heat 1141J/Kg`cThermal conductivity 2.34Wm^2KViscosity In gragh

Plunger

Glass

Mould

Watercooling

Air cooling

Boundary Condition

Viscosity flow on steady static

& Thermal conduct on Time frequency

Flow analysis

: FLOTRAN element FLUID141

Thermal conduct analysis

: THERMAL element PLANE55

Temp. 900 Temp. 950

Temp. 900 & Angle 30 Temp. 1000

Temp. 1000 & 0.5ATM Temp. 1000 & Angle30

Temp. 1000 & Angle60

Result

플런저의 속도 , 압력 및 초기 곱 온도 변화에 따른 결과 분석Unfill 불량 여부 조사최저 임계온도 조사

CAD/CAE 효과적 연계 의한 성형 공정 구현CAE 에서 유동 및 열 전달 문제 해석자유 표면 및 접촉 점의 갱신을 CAD 에서 구현CAD 의 API 함수를 이용한 자동화

2-D Model

Progress Glass Pressing on Initial setup

100,120,140mm/s

Unfilled ; 100mm/s

120mm/s 6.3sec

140mm/s 5.5sec

14.0

14.5

15.0

15.5

16.0

16.5

17.0

1.0 3.0 5.0 7.0 9.0Time(s ec)

Thic

knes

s(m

m)

Plunger speed 140mm/s

Plunger speed 120mm/s

Plunger speed 100mm/s

Progress Glass Pressing on changed Initial velocity

Progress Glass Pressing on changed Initial weight

Increased weight 70,82,90kN

unfilled ; 70kN

14.0

14.5

15.0

15.5

16.0

16.5

17.0

1.0 3.0 5.0 7.0 9.0

Time(sec)

Thic

knes

s(m

m)

Plunger load90kNPlunger load82kNPlunger load70kN

Progress Glass Pressing on changed Initial Temp.

Temp. changed 900,950,995

unfilled ; 900,950

The critical Temp. 992

14

18

22

26

30

0.0 2.0 4.0 6.0 8.0 10.0

Time(sec)

Thic

knes

s(m

m)

Initial gob temperature 995

Initial gob temperature 950

Initial gob temperature 900