from back cover of book:
increasing appearance of vertical milling machines in model engineers' and other
small workshops has brought the versatility of this type of machine to the notice
of a large and growing group of potential users, but until the first edition of
this book was published in 1977 there was little available guidance for the average
amateur or small user.
third, revised edition includes descriptions of many of the very wide range of
operations possible with photographed examples, plus information on machines,
accessories, cutters, requirements and methods of work-holding.
the Author - Arnold Throp enjoyed a long and successful engineering career
starting with very large steam and oil engines and including high tension switchgear,
mining machinery and machine tools. He has achieved over 55 years of membership
of the Institute of Mechanical Engineers.
Black & White
of Measurement: Imperial
Chapter One - EVOLUTION
OF THE VERTICAL MILLER
Early history of industrial machines: milling in the
early small lathes: milling attachments for lathes circa 1920s: E.T. Westbury's
experimental machine 1964: the Dore-Westbury machine 1968: currently available
small machines and attachments.
Two - MILLING FLAT SURFACES
parallel to table: simple fixed-radius flycutters: variable-radius boring head
flycutting: multiple-tooth face mills: work holding: multiple-pass milling: surfaces
square with table: using side of endmill.
Three - SLITTING AND CUTTING
of slitting saw for cutting through machinery component bosses: eccentric sheaves
and straps: marine type big ends of connecting rods.
Four - KEYWAY CUTTING
round ended 'feather' keyways: keyways on taper shafts: use of disc type cutters
for plain sunken keyways: Woodruff keyways: making Woodruff cutters in the home
workshop: table of suggested sizes of Woodruff keys and keyways for model engineers.
Five - FLUTING COMPONENTS OTHER THAN TOOLS
Correct form of flutes in loco
connecting and coupling rods: mounting rods against angleplate for fluting: parallel
flutes: taper flutes: preferred type of cutting tool.
Six - BORING
with parts too large to swing in lathe: trepanning large holes.
Seven - 'JIG-BORING'
Using the miller as a measuring machine: drilling holes
at one setting of work and precise centres: engine beam: back-lash precautions:
trip gear component: multi-hole boiler plates.
Eight - PROFILING
Curves on parts too large for lathe: loco frames: smokebox
castings: machine pad bolts: loco connecting rods and coupling rods.
Nine - END-ROUNDING
Use of hardened filing guides deprecated: mounting work
on rotary table: standard size guide plugs: anti-slip precautions: direction of
feed for external and internal surfaces.
Chapter Ten - DIVIDING HEADS
Simple ungeared dividing heads: using change
wheels as index plates: examples of dividing work: hexagons, squares, dog clutch
teeth: avoiding odd numbers: the Myford worm-geared dividing head: avoiding backlash
errors: packing block for bringing to lathe centre height: universal steady stand
for Myford head: three further dividing heads.
Eleven - DIVIDING HEADS AND GEAR-CUTTING
Limitations to straight spur gears:
simple head: Myford worm-geared head: tooth cutting on integral pinion: use of
home made flycutters: Brown 5 Sharpe disc type cutters: selection of cutter to
suit number of teeth: cutting a large coarse tooth gear: anti-slip back-up devices.
Twelve - DIVIDING HEADS AND TOOL MAKING
Fluting taps: example 5-flute Acme
tap: producing a small fine tooth milling cutter with ball end: use of table stop
blocks: combination of rotary table with main table movement: large 60 degree
Thirteen - DIVIDING HEADS AND GRADUATED SCALES
Cutting graduation marks:
use of rotary 'engraving' cutters: use of non-rotating planing type tools: use
of table stops to control line lengths: graduating cylindrical scales: graduating
flat angular scales: checking correct way of figuring when stamping scales.
Fourteen - CUTTER SPEEDS FOR VERTICAL MILLERS
Speeds affect time occupied
on job: speeds too high may cause excessive cutter wear and chatter: rigidity
of work, cutter and machine inferior as a rule to industrial conditions, dry cutting
instead of lubricated: Table III gives speeds for cutters in different kinds of
tasks: machine speeds may not always be suitable.
Fifteen - WORK-HOLDING WITH DIFFICULT SHAPES
Comparison with full scale engineering:
use of chucking pieces on components: thin components and use of adhesives: advisability
of making fixtures for difficult pieces: three-sided angleplates.
Sixteen - CHUCKS FOR MILLING CUTTERS
Never use taper shank tools or chucks
without drawbar: chucks for screwed shank self-tightening collets: Clarkson chuck:
Osborn Titanic chuck: Chucks for tee-headed locking cutters: Clare chucks: use
of small end mills and D-bits without locking features: philosophy of 'throw-away'