Our Processes

automatic wax pattern making

Once set up, automatic wax patterns work with minimal human intervention, which can result in cost savings. These savings may be greater if multi-cavity patterns are used.

While automatic patterns cost more than manual ones, they repay the investment by providing thousands of less expensive repeatable patterns. They also minimize the costs of maintenance, reworking and replacement in future production runs.

robotic dipping

In the investment casting process, robotic dipping eliminates the inconsistencies of manual labour. It creates a strong shell mold that matches the pattern exactly. This stage guarantees consistent metallurgical results by maintaining the shell’s heat transfer characteristics.

The technology offers substantial savings:

  • Facilitates repeatability 
  • Prevents material waste
  • Reduces lead times

direct pouring with no intermediary

This allows for precise control of the shell mold and of the molten metal variables. This single stage guarantees:

  1. Minimal contamination from atmospheric contact
  2. Precise temperature control of the metal and shell
  3. Minimal oxidation and alloy element loss since the molten metal is eliminated from the transfer ladles, which are filled and emptied several times
  4. Minimal foreign matter contamination since de-slagging is done just prior to pouring. Plus, metal does not come into contact with any other vessel prior to its introduction into the mold cavity
  5. An aesthetic finish that meets industry demands


  1. Melt a large quantity of metal
  2. Transfer it to smaller ladles
  3. Fill individual shell molds

… Vestshell favours a direct pouring method.

an end product of unparalleled quality and integrity

By eliminatingthe variability factors of the complex casting process, we also eliminate defects. The result is superior quality castings of unmatched integrity and repeatability. 

metal alloy trimming with machinery

Traditional manual trimming methods are ineffective in the production of precision steel castings: 

  • They require constant human intervention
  • They increase the risk of injuries
  • They slow down production
  • They often result in damaged parts 

Instead, we’ve chosen to design and use tools that are more appropriate for high-end precision casting. This method also guarantees the safety of our workers.

At this stage, cut-off clamping is done on predetermined points with parts brought past cut-off blades rapidly. 

What does this mean for you?

  • Yield and manufacturing speed optimization
  • Reduced production costs and increased profitability
  • Perfect dimensional precision
  • Elimination of gate stubs when grinding

Ever received a casting shipment with gate stubs still present?

Did you know that the most common place to find casting defects is under the gates?

complete gate removal

Many foundries ship castings with gate stubs and heavy grinding marks. These flaws can end up being much more than just cosmetic when you discover hidden defects during the stub machining phase.

Vestshell’s superior finishing methods ensure that all castings…

  • have gate stubs completely removed, for a uniform finish;
  • are designed without flaws and conform perfectly to the drawing’s specifications.

in-process N.D.T quality control

Non-destructive testing (N.D.T) can be performed at any time throughout the production of castings, or if process variability necessitates checking. 

Only if the process proves capable does the casting proceed downstream. 

For some complex castings, full N.D.T can be performed to validate all parts that need to be completed.

The finished product resulting from this process, during which the necessary N.D.T is done, falls within a most precise tolerance band.

multi-directional straightening

When the above operations are performed, the results obtained are as follows:

  • Consistency in performance and repeatability
  • Dimensional stability well within the designer’s tolerance band 

Vestshell then applies its own specialized straightening techniques, based on over 50 years of experience. The castings are then manipulated at high pressures.

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