Sharp AE-X9JJ Manual de usuario descargar pdf (Pagina 13)

MARTINDALE

• 1375 Hird Ave • Cleveland, OH 44107

Phone (216) 521-8567 • Fax Local 521-9476 / USA & Canada (800) 344-9191

E-Mail: [email protected]

Web Site: www.martindaleco.com

02/05

Helpful Hints For Saw Users (H.S.S. Metal-Working Saws)

These are general suggestions for conventional machines on where to start, and must be varied to meet a particular application. We do not assume

any liability in the following statements.

These STOCK saws will do the job. Variations, such as number of teeth, rake angle, clearance angle, bevel, side clearance, material, land, etc. may

do it better, but set-up charges and lead time must be considered.

SPEEDS — With a good set-up the speeds in the table below should be attainable

— Reduce the speed for hard (over Rockwell c30) and abrasive materials, and for deep cuts.

— Increase the speed for “free-machining” and non-ferrous metals.

Continued Next Page

Saws: M-2 Steel, Ground Teeth, 0° Rake Angle

Material Saw

to be cut Diameter: 1-3/4” 2-1/4” 2-3/4” 3” 4” Coolant

Teeth - R.P.M. Teeth - R.P.M. Teeth - R.P.M. Teeth - R.P.M. Teeth - R.P.M.

Mild Steel 64 - 450 60 - 350 56 - 275 56 - 250 72 - 200 Cutting Oil

Alloy Steel 64 - 200 60 - 175 56 - 150 56 - 125 72 - 100 “

Stainless Steel 64 - 200 60 - 175 56 - 150 56 - 125 72 - 100 “

Steel Castings 64 - 200 60 - 175 44 - 150 44 - 125 60 - 100 “

Steel Forgings 64 - 450 60 - 350 56 - 275 56 - 250 72 - 200 “

Monel 64 - 200 60 - 175 56 - 150 56 - 125 72 - 100 “

Aluminum 64 - 2000 60 - 1750 44 - 1350 44 - 1250 60 - 950 Soluble Oil

Bronze 64 - 750 60 - 600 44 - 500 44 - 450 60 - 350 “

Yellow Brass 64 - 2500 60 - 2000 44 - 1600 44 - 1500 60 - 1100 “

Copper 64 - 1750 60 - 1350 44 - 1100 44 - 1000 60 - 750 “

Malleable Iron 64 - 350 60 - 250 56 - 200 56 - 200 72 - 150 “

Cast Iron 64 - 450 60 - 350 44 - 275 44 - 250 60 - 200 Dry

Die Castings 64 - 2500 60 - 2000 44 - 1600 44 - 1500 60 - 1100 “

Brittle Plastics 64 - 1000 60 - 900 56 - 700 56 - 650 72 - 500 “

Flexible Plastics Use Set Teeth (Hub saw with maximum side clearance for very thin cuts)

FEEDS — will vary from .0002” to .002” per tooth. We suggest starting with the cutter described above and trying to arrive at the condition described

under “Cutting Fluids” by varying the Feed and Speed. A straw color is the limit. The saw loses its temper when it starts turning blue.

CUTTING FLUIDS — (to cool, lubricate, and wash the chips away. Use Flood. Do not use Mist Units.)

Cutting Oil — Follow Manufacturer’s Instructions - or - use a 4% sulphur homogenized cutting oil.

Soluble Oil — Follow Manufacturer’s Instructions - or - use 40-1 solution of soluble oil — (Mix thoroughly in a 4 - 1 solution before adding

to tank.) Increase speed and feed until the lubricant starts to give off a slight vapor (smoke).

Frequently saws are run too slow, causing rubbing and premature wear.

DISH — (Side-Clearance or Hollow Grind) Increase it for stainless steel and tenacious metals such as copper, zinc, tin or lead.

MOUNTING OF SAWS — Breakage — Wobble — Rubbing: These problems may be caused by the way the washers are mounted on either side

of the saw. — Washers drive the saw, in the absence of a driving key, and must always be clean, flat and bur-free. A speck of

dirt will let the saw wobble and cut oversize. If a saw breaks, it may score the washers. Check marks around the saw hole for:

Dirt, Shiny Spots (as small as a pinpoint, indicating chips imbedded under the washers), and Circular Skid Marks, which indicate

the nut is not tight. — Thin saws should especially be supported by washers as large as possible. — Nut must be wrench-tight.

— If the saw blade pauses momentarily in its rotation while the feed advances, it will break. — Washers must be of equal diam-

eter or they will flex out the dish and cause one side of the teeth to rub.

(There should be at least 2 teeth engaged in the cut.)

Increase Number of Teeth For: Decrease Number of Teeth For:

— Thin Material — Sandy Castings — Chip Clearance and Tooth Strength

— Thin Cuts (under .025”) — Thin Castings (Consider MSL & SMF type saws.)

— Slow Spindle Speeds — Work Hardened — Deep Cuts (over 1/4”)

— Hard Material — Hard Spots — High Speeds

— Free Cutting Material

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Sharp AE-X9JJ Manual de usuario Pagina 13

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