Machining Time

Machining Time

 

the time during which a piece of equipment (machine, lathe, unit, or apparatus), without direct participation of an operator, produces a change in the dimensions, shape, or state of a workpiece. The machining time depends on the characteristics of the manufacturing process; on the qualitative features of the raw material, semifinished product, or stock; on the type of equipment and tool; and on the mechanization and automation of labor.

Standards for machining time are calculated by determining the optimum operating schedule for the equipment, which ensures maximum output, minimum prime cost of the articles being processed, and the required quality level. For example, for metalcutting machine tools the standard machining time is determined according to well-grounded conditions of cutting (depth of cut, feed, cutting speed, and number of passes). Machining time may be reduced through the introduction of highspeed processing methods and by using high-performance equipment and instruments. As the level of mechanization and automation of production rises, the proportion of machining time in the standards of piece rate time for completing a unit or for completing one manufacturing operation increases.

References in periodicals archive ?
Compared to conventional machining methods, the non-contact laser process minimizes both the machining time due to lack of set-up times and the costs caused by tool wear.
For a required total machining time, oversize and taper the corresponding process parameters to be set in EDM by using the developed and trained ANN are determined [6].
com/us) permits drilling and chamfering with a single tool, thereby reducing overall machining time and costs.
Two turning tools opposite one another machine the workpiece simultaneously, enabling the machining time to be significantly reduced.
SANDVIK says machine shops are constantly looking to minimise their machining time per component in order to increase productivity while combating increasing costs and competition.
With CAMWorks VoluMill, users can achieve machining time savings of up to 80% even in difficult to machine tool steels.
In finish turning, tool life is measured by the machining time taken by the same insert until the flank wear reaches its allowable limit of 0.
The Tilting strategy offers easy-to-program simultaneous milling, which is especially suitable for robust machining of parts with deep cavities, narrow ribs and tiny corner radiuses, using shorter and more rigid tools to achieve the best surface quality and reduce machining time.
It is available with the Dual Pump Package, an integrated system that uses two P4055V pumps to produce cutting speed and power, and a reduction in machining time compared to previous cutting models.
By casting in several pipes and external hoses, Fansteel/Wellman Dynamics was able to reduce assembly and machining time for its customer, while eliminating more than six hours of assembly and processing time and reducing part weight by 11 lbs.
Since this new, improved horn is "built" and tested on the computer, there is no waste of expensive materials like aircraft-grade titanium or aluminum, or valuable machining time.
The software also offers the ability to create a process sheet consisting of a list of NC files in the order of machining, along with the machining time of various tool paths.