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Fundamentals
of Pressworking
Fundamentals of Pressworking (DVD included)
Pull all your
pressworking elements together
416 Pages
·
251 illustrations · 99 contributors
For effective pressroom operation,
it's not enough to merely focus on the presses and dies. Fundamentals of Pressworking pulls all pressworking elements together,
providing an essential overall view of the technology for operators
and managers. It covers such subjects as press types, proper maintenance,
tooling and safety factors as well as basic pressworking operation.
It even touches on the history of presses. As comprehensive as it
is, however, the book is true to the word "fundamentals"
in its title. It is easy to read and valuable for those with all
levels of pressroom experience.
1. Historical Press Development
evolution of power presses and hydraulic
presses
2.
Mechanical Press Types and Nomenclature
construction of gap-frame and straight side presses,
guide to identifying press components, clutch types and adjustment,
clutch and brake specifications, press motors, variable speed drive
systems, counterbalance system components, setting counterbalance
pressures and maintenance press construction, electrical controls
for maintenance and safety, integrating press control systems
3.
Gap Frame Presses
operational advantages, measuring stiffness and angular deflection,
tie-rod installation, bulldozer applications
4. Straight side Presses
force capacities and bed sizes, mechanical
vs. hydraulic, overload protection systems, slide connections, single
connection presses, two-point presses, slide adjustment devices,
advantages of under drive presses
5. Hydraulic Presses
advantages and limitations, unique
features, types of overload protection, force capacities and requirements,
press speeds, guidelines for selecting hydraulic presses over mechanical,
press accessories, quality factors, safety and ergonomics, programmable
hydraulic blankholder force controls
6. Basic Die Operations
shearing, cutting clearances, cutting
force factors and calculations, energy requirements, shaving, solutions
to common punch-head breakage problems, cutting force reduction,
pressure pads and strippers, compound dies, bending and flanging,
bend allowances and pressures, drawing and stretching, stamping
analysis, circle grid analysis, forming limit diagrams
7. High Speed Presses
and Die Operations
dynamic balance and inertia factors, snap-through energy release,
bearings and lubrication, progressive die operations
8. Transfer Presses and Die
Operations
dual-axis
and tri-axis feeders, drives, swing-out transfer bar carrier assemblies,
multiple slide straightside presses, automatic die change, die design
for transfer presses
9.
Press Installation and Sensing Systems
press leveling, testing and adjusting press beds,
force monitors and load measuring, electronic strain sensors, determining
force by measuring strain, load cell testing and operation, waveform
signature analysis, diagnosing hydraulic overload, limit switches,
contact sensors, inductive proximity sensors, photoelectric sensors
10.
Press Inspection and maintenance
inspection practices for preventive maintenance, sample inspection
form, lubrication system maintenance and troubleshooting, checking
and measuring alignment and bearing clearances, typical bearing
clearance allowances, selecting press testing methods, slide tracking,
pre-stressing tie-rods, load cell testing and calibration, analysis
of press failure causes, repair vs. replace criteria
11. Press Safety and Auxiliary
Equipment
power lockout,
holdout or restraint devices, pullout devices, barrier guards, light
curtains, two-hand controls, safety distance requirements, coil
feeders, decoiling systems, quick coil change, stock straighteners,
roll feeder setup and accuracy, hitch feeds, starting progressive
dies strips, chute and conveyor types, part and scrap container
types, air blow off
12.
Diesetting Principles and Techniques
converting diesets from internal to external,
die storage and retrieval systems, die transport methods, using
forklifts and die carts, success factors for quick changeovers,
prestaging racks, centerline keyway locating, jigs and templates
for adapting dies, tapped bolster holes, T-slot layouts, locating
to the press ram
13.
Establishing Good Clamping Practices
safe fastener standards, recommended fasteners,
clamping methods to avoid, selecting clamps, standardizing clamping
heights, review of clamp design advantages and applications, operating
dies on parallels, preventing process variation problems related
to parallels, attaching parallels in relation to T-slots, procedures
for establishing common die shut and pass heights, setting draw
dies, adjusting knockout bars
14.
Die Materials and Lubricants
tool and die steel characteristics, heat treatment of die steels,
cryogenic treatment, controlling dimensional change, die welding,
die surface coatings and treatments, powder metallurgy, die structural
materials and die irons, nonferrous and nonmetallic die materials,
cemented carbides, guidelines for choosing lubricants, pastes, dry
films, soaps, advantages of waterbased lubricants, cleaning and
finishing requirements, lubricant clarification and disposal
15.
The Future of Metal Stamping
summary of good stamping management practices, economic and production
advantages of metal stampings for specific industry applications,
recyclability
By D. Smith
416 pages, hardcover,
©1994, $76.00 (quantity and member discounts may apply)
Published by Society of Manufacturing Engineers, Dearborn, Michigan
ISBN 0-87263-449-3
Available from major booksellers and:
SME 1-800-733-4763 www.sme.org
Check Search Engines such as Google
for prices and other sources
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