Pressure forming is an improved variation of the vacuum forming process utilizing compressed air (pressure) as an added step to force the heated plastic sheet to conform into the tighter corners of a mold. The result is a thermoformed part with the look and feel of an injection mold part at a fraction of the tooling cost. 
 
 
  PRESSURE FORMING
 

Pressure Forming Advantages:
 Low tooling cost and faster turnaround time compared to injection molding
High cosmetic features such as sharp detail and tight corner radii
Exquisite design aesthetics
Embossed logos, design features, vents, etc.
Negative or zero drafts and undercuts
Mold texture or painted finishing
Higher impact strength requirements compared to injection-molded parts
Short (from 10pcs/year) and medium (up to 1000pcs/year) run requirements
Ideal for functional market-sampling trials and shorter life cycle products
Immediate delivery for production needs, until injection-molded parts are
   phased in.

Application:
 Equipment Enclosures
Monitor bezels
Control panels

This process may not be suitable for parts that require:
 High volume production (over 5000pcs/year)
100% uniform wall thickness control