Addressing Precision Aerospace Machining Difficulties

In the last post I talked about the difficulties of precision machining aerospace parts.  I would like to address these issues and specifically talk about how CNC Industries handles each of them.

The first issue, namely tight tolerances, is addressed in a few different ways.  The first step is to make sure that the equipment being used is capable of the types and quality of machining necessary.  Proper maintenance is also an important step, many companies lay-off their maintenance staff at the first sign of a downturn.  Maintenance is a key aspect of CNC Industries’ strategy.  The second step of ensuring that tolerances are met happens in engineering.  Engineering staff creates fixtures, work drawings, and machine code to run the part correctly.  Engineering is another key area that CNC Industries believes should not be cut too early.  The third step is to ensure that information about the part flows correctly.  To aid in this we have written our own ERP system.  Job Manager 2 is a real time system that enables information to be updated and transferred throughout the facility so that any changes made are implemented immediately.

The second issue, the amount of material removed, is a prime engineering problem.  The fixture created for each part must take into account the changes in strength that the material will go through during the machining process.  With fixturing being such an important aspect of creating a good custom machined part, we go through a process we call the Pre-Flight Meeting.  In this meeting our top management, quality assurance, engineers, and shop floor supervisors meet to discuss any issues that we see as important to the manufacturing of the part.

The third issue, external quality standards, is again addressed through information management.  Our ERP system allows each part to have an unlimited amount of quality standards.  The part routers created in Job Manager 2 allow for any and all detailed information to be added to an individual operation.  The amount of detail contained in each router, in addition to the real-time ERP system allows us to ensure that all of the information needed to complete a job to the full satisfaction of our customer is accessible at all times.

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CNC Industries is a Fort Wayne, Indiana based machine shop specializing in precision CNC machining, fabrication and assembly of application-critical and custom machined parts for the Aerospace, Defense, Medical, Industrial and Transportation  markets.   The company presently employs approximately 55 people.

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