Milling machine - Quality checks

Milling Machine Quality checks

Exceptional quality comes from perfecting the smallest details. Every stage in the production chain from raw materials inspection to machining, testing, final product assembly and delivery must repeatedly pass specialized tests and strict quality control procedures to ensure every milling machine is defect free. These rigorous quality controls extend machine life and improve the overall functionality and value of machines.

Correct measuring tools

Correct measuring tools must be selected for measuring different dimensions and machining operations. The selection of measuring tools will depend on the tolerances given on drawings. The following are some of the operations and measuring tools that can be selected:

Turning operation	Measuring tool	Turning operation	Measuring tool
Parallel milling	Vernier calliper or outside micrometer	Boring and drilling	Vernier calliper, inside micrometer
Step milling	Vernier calliper or depth micrometer	Gear cutting	Vernier calliper or micrometers
Keyway milling	Vernier calliper or depth micrometer	Grooving	Vernier calliper or inside micrometer

Go no go gauges can also be used during final inspection without measuring work. This can be performed by semiskilled staff.

Surface finish Videos

Surface finish, also known as surface texture or surface topography, is the nature of a surface as defined by the three characteristics of lay, surface roughness, and waviness. Each manufacturing process (such as the many kinds of machining) produces a surface texture.

A surface comparison block can be used. This method is very subjective and is increasingly been replaced with surface texture gauges.

Surface texture comparison plate	Electronic surface texture gauge

Recognise machining problems and correcting them

Here are some of the more common faults: Video PDF file