Medical Industry

For the past 40 years, TPi Arcade has been an industry leader in supplying turnkey medical components. TPi employs highly automated V-Process casting technology that is extremely well suited for medical applications. We manufacture components ranging from ...
Learn More

Instrumentation Image

Instrumentation

TPi Arcade’s V-Process castings are an excellent application for laboratory setting parts. The V-Process does not add a chemical or binder into the sand. This results in a denser and smoother metal than traditional sand castings. Instrumentation...

Learn More

Robotics Image

Robotics Industry

Our highly automated line is extremely ...
Learn More

Aerospace Image

Aerospace Industry

Being AS9100 and ITAR certified make TPi Arcade...
Learn More

Marine Image

Marine Industry

Exceptional solutions for the marine industry...
Learn More

How the V-Process Works

V Process Step 1
V Process Step 2
V Process Step 3
V Process Step 4
V Process Step 5
V Process Step 6
V Process Step 7
V Process Step 8
V Process Step 9
Step 1:
The pattern (with vent holes) is placed on a hollow carrier plate.
Step 2:
A heater softens the .003" to .008" plastic film. Plastic has good elasticity and a high deformation ratio.
Step 3:
Softened film drapes over the pattern with 200 to 400 mm Hg vacuum acting through the pattern vents to draw it tightly around the pattern.
Step 4:
The flask is placed on the film-coated pattern. Flask walls are also a vacuum chamber with the outlet shown at right.
Step 5:
The flask is filled with dry, unbonded sand. A slight vibration compacts sand to maximum bulk density.
Step 6:
A sprue cup is formed and the mold surface leveled. The back of the mold is covered with unheated plastic film.
Step 7:
Vacuum is applied to the flask. Atmospheric pressure then hardens the sand. The vacuum is released, pressurized air is introduced into the carrier and the mold is stripped.
Step 8:
The cope and drag assembly form a plastic-lined cavity. During pouring, molds are kept under vacuum.
Step 9:
After cooling, the vacuum is released and free-flowing sand drops away leaving a clean casting, with no sand lumps. The sand is cooled for re-use.
TPi Arcade, LLC

TPi Arcade, LLC