We define cycle time as the overall length of
time it takes to complete a production run divided by the number of good
workpieces produced. Frankly speaking, unless your machine is down for setup,
it's in production! We make anything that adds to the time it takes to complete
a production run fair game for your cycle time reduction program.
This essential manual presents cycle time reduction from the ground up:
Basic premises - We begin by presenting a series of basic premises,
ensuring that readers understand important themes for improvement. And we
stress that CNC machine utilization is the highest priority in our definition
of setup reduction. We discuss company types and company identity. We define
important cycle time reduction terms. And we present important principles of
value added to help you involve others in your setup reduction program.
Cycle time reduction principles - Next we show the principles of
cycle time reduction - principles that can be applied to most forms of
production equipment. We discuss the importance of reducing cycle time,
justification issues, the relationship between production quantities, process,
and cycle time, and present two definitions of cycle time. We then show the two
task-types related to running production, the three ways to reduce cycle time,
and the four steps to cycle time reduction.. A cycle time reduction planning
form is included to help you get started with your own cycle time reduction
Comprehensive 145 page manual to help you learn cycle time reduction
principles and techniques
Written by Mike Lynch and
published by CNC Concepts, Inc.
Cycle time reduction techniques - Finally, we show countless
techniques to help you reduce cycle time. While it is our intention to provide
you with as many techniques as possible, our more important objective is to
help you understand the ingenuity that it takes to reduce cycle time - and to
provide some food-for-thought for your own cycle time reduction program.
This lengthy chapter presents cycle time reduction techniques in the
approximate order that production runs are completed: preparation and
organization, workpiece loading, program execution, workpiece unloading,
off-line tasks that occur during every cycle, sizing adjustments, and dull tool
replacement. Each step of the way we're showing how to eliminate tasks, move
them off line, or facilitate them.