CAD to CMM

PAS-CMM automates CMM programming and provides a controlled environment that ensures the integrity and completeness of the QA process.

Design data (model & drawing) is converted to the PAS inspection model, and used for the automatic creation of a DMIS program.

PAS-CMM can be used efficiently by non expert users and helps to realize significant time savings (50%-95%) when compared to conventional CMM programming.

Conventional Programming

The CMM control programs (Camio-Studio, MCOSMOS, PC_DMIS, ….) provide specific environments for CMM programming.

These control programs vary in their functional capabilities and performance, but they are all  based on manual programming and requires the following:

• Set an ID number for each QA requirement (Annotation)
• Identify and select the features that have to be inspected for each dimension.
• Decide how each feature should be inspected and set the appropriate parameters (probe, point count, mode, report option….)
• Control the inspection path (efficient sequence, collision avoidance….)

This is a time consuming process, requires a high level of expertise, is error prone and compromises the integrity and the completeness of the process as it depends on manual reentry and interpretation of the design data.

PAS-CMM Solution

PAS-CMM provides an efficient and highly automated link between the CAD domain (3D model and drawing) and the Inspection environment as follows:

• Design data - model and drawing are extracted and converted to the PAS inspection model
• 2D annotations are linked to the relevant design features and the inspection parameters are set automatically according to the specified tolerances.
• An inspection program (DMIS) is created automatically from the PAS inspection model
• A report viewer provides a graphic display of inspection results.

Summary

• PAS-CMM inspection model ensures process completeness and data integrity:

• • It is derived directly from the design model
  • The inspection process is created from it automatically
  • It completely defines the inspection report form and content

• CMM programming time it reduced by a factor of 10

• The created CMM program is machine independent

PAS in the press:

American Machinist: How to reduce the CMM programming bottleneck

http://www.americanmachinist.com/Classes/Article/ArticleDraw.aspx?HBC=Issue&NIL=False&CID=83647&OASKEY=Issue

Quality Magazine: Quality Innovations: Automate CMM Programming

http://www.qualitymag.com/CDA/Articles/Departments/BNP_GUID_9-5-2006_A_10000000000000617464

Quality Digest: Reducing Errors in Manufacturing

http://www.qualitydigest.com/magazine/2009/apr/article/reducing-errors-manufacturing.html

American Machinist: Cut CMM Programming Time 90 Percent

http://www.americanmachinist.com/Classes/Article/ArticleDraw.aspx?HBC=Issue&NIL=False&CID=82027&OASKEY=Issue