The Vacuum sealed moulding (V process) makes use of dry sand, plastic film and a negative vacuum pressure as a means for binding. The process was developed in 1971 in Japan. Due to its unique capability of producing smooth and accurate castings, the process gained further importance.

1. Vacuum Sealed Molding Process
GUIDED BY, PRESENTED BY,
Prof. (Dr.) A. Kharim Kutty, Adarsh B G
Dean,Dept of ME M13425002
MESITAM S8 ME

2. INTRODUCTION
•Also known as V-Process
•Developed in 1971 in Japan
• It make use of dry sand, plastic film and vacuum pressure for
binding
•No need of shaking out method and equipment to remove the
casting

3. SEQUENCE OF PRODUCING V-MOLDS
STEP 1 STEP 2(i) STEP 3 STEP 4
STEP 5 STEP6 STEP 7 STEP 8

4. LITERATURE REVIEW

5. Rapid fabrication of aluminum shoe mold using vacuum
sealed molding process
S. Chunga,∗, Y. Ima, H. Jeong a, D. Jeong b, K. Choc, S. Leed, B. Choi d, H. Choi d feb 2004
•Comes under Materials Processing Technology
•Relay on Rapid Product Development in Shoe Industry using V
process
•In general shoes molds are made by cutting process
•It comprises of three parts

6. •Due to technical difficulties all the three parts are
manufactured by conventional machining process
•This paper suggests to use V-Process
•Shoe mold made by V-Process consist only an Upper and Lower
mold
•V-Process will helps in Rapid Product Development in a Shoe
Industry
Cntd…

7. A multi-objective framework for the design of
vacuum sealed molding process
Pradeep Kumar!, Nanua Singh!,*, Parveen Goel” JAN 1999
•Comes under Robotics and Computer Integrated
Manufacturing
•Provides a framework for process design to achieve
simultaneous improvement of multiple features of product
•It give a description about the procedural steps
•Case study on v process
Quality characteristics of castings

8. Cntd…
Process parameters
i. Molding sand based variables
ii. Plastic film based variables
iii. Vibration based variables
iv. Pouring material based variables
• Analysis of multi objective model were done and is documented
in this paper

9. Reference
Pradeep Kumar!, Nanua Singh!,*, Parveen Goel"multi-objective framework
for the design of
vacuum sealed molding process Robotics and Computer Integrated
Manufacturing 15 (1999) 413-422
 S. Chung,∗, Y. Im, H. Jeong , D. Jeong , K. Choc, S. Leed, B. Choi , H. Rapid
fabrication of aluminum shoe mold using vacuum sealed casting
processChoi
Nptel advanced manufacturing
processhttp://nptel.ac.in/courses/112107078/
Kalpakjian s ., Manufacturung Engineering and
Technology,6/e,PearsonEducation,2009

10. THANK YOU

11. ANY QUESTIONS ??