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8/12/2019 Laser and Waterjet Capabilities[1]
1/5
Automation
Tooling
Systems
Cambridge Advanced Systems Division
MECHANICAL DESIGN STANDARDS
NUMBER:
PAGE:
ISSUE DATE:
REVISION:
PREPARED BY:
APPROVED BY:
1 of 5
September ! "##$
S%&'b()( * M% Bro+,
LASER AND -ATER .ET CAPABILITIES
1% SCOPE
This document will outline:
Materials that can be cut by each process
Material thicknesses that can be cut by each process
Achievable tolerances
Design consideration
When to use each process
"% LASER CUTTING
"%1 OVERVIE-
CNC laser cutting process is designed to cut a variety o materials to precise speciications! Cutting
programs ensure the most eicient layout o material! The laser beam is guided through mirrors rom the
stationary laser resonator to the moveable cutting head while the material lies stationary on the cutting
table! The distance between the cutting no""le and the work piece is automatically held constant to ensure a
precise cutting operation! The e#uipment ad$usts cutting speeds and power based upon the comple%ity and
type o material being cut!
"%" MATERIALS
Steel& Stainless steel& aluminum& titanium& copper& inconel& hastalloy& and generally any carbon based
material!
"%/ THIC&NESSES
'or aluminum ma%imum thickness o ()*+, no min thickness with nitrogen assisted cutting!
'or stainless ma%imum thickness o -,& no min thickness with nitrogen assisted cutting!
'or Steel a ma%imum thickness o .,& no min thickness with o%ygen assisted cutting /blackened edge0
Typically& thicknesses e%ceeding ()1, would not be laser cut due to compromised edge #uality as a
result o heat buildup!
"%0 TOLERANCES
The best tolerance most laser cutting shops will guarantee is 2)3!445,!
Accuracy 3 2)3 4!445 6nches
7ositional 3 2)3 4!448 6nches
9epeatability 3 2)3 4!448 inches
Tolerances will vary with material types and thicknesses but this is a good guideline! The more power
re#uired to cut a material thickness& the looser the tolerance will be!
ATS PROPRIETARY: T6S D;C ;' ATS! 6T 6S C;N'6D=NT6A? 6N NAT
8/12/2019 Laser and Waterjet Capabilities[1]
2/5
Automation
Tooling
Systems
Cambridge Advanced Systems Division
MECHANICAL DESIGN STANDARDS
NUMBER:
PAGE:
ISSUE DATE:
REVISION:
PREPARED BY:
APPROVED BY:
" of 5
September ! "##$
S%&'b()( * M% Bro+,
"%5 DESIGN CONSIDERATIONS
7recision dowel holes& keyways& and any other design eatures re#uiring a tighter tolerance canno
be laser cut!
Most laser cutting beams are !44(, in diameter! ole diameter cannot be smaller than the thickness o the material it is being cut rom /ie! The
smallest hole in a !*85, thick sheet o stainless steel would be a !*85, in diameter0! owever& hole
locations can be pierced)marked on the material and then inished in house!
eat produced by laser cutting should rarely)never produce warpage in the part
Material edges ater laser cutting should never need to be machined! 7rocess produces clean cut
edges!
All laser cutting is programmed e%clusively using D' ormat! Thus& we save time and money i we
provide D' ormat to our shops! 6 not& they would be re#uired to draw and program parts to be
nested during cutting!
'lat views and developed lengths always need to be speciied on ATS drawings or laser cutting!
Stainless Steel Sheet E inish has a polished inish! This should be used when appearance is
important! Speciy on the drawing which side is to be the polished surace! 7olished side withprotective ilm must always be Fplaced up, or laser cutting! See igure * or an e%ample drawing!
When multiple bent pieces made rom stainless steel with a E inish are to be placed side by side&
grain direction must be speciied on the print! This is to avoid have the grain run in one direction on
one piece and perpendicular on the piece ne%t to it! See igure * or an e%ample drawing!
G3A%is ad$ustability H 8!I5 inches
Ma%imum work piece weight H *&*85 lbs
7recision cutting o blanking dies rom pre3hardened materials
Typical lead time o laser cutting is I3*4 working days
"% -HEN TO USE
6tems that are odd proiles& contain various cutouts and can be cut rom lat sheet stock& are good
candidates or laser cutting! =lectrical panels& abrication doors& some types o brackets and
covers& etcJ! have been sent out by ATS lately or laser cutting!
?aser cutting can be used in replacement o CNC operations were tolerances in the thousands o an
inch are acceptable
Kuantity and secondary operations re#uired are play a actor in determining i a part is suitable or
laser cutting! Bery high volume brackets or instance we have ound to be more cost eective by
CNC punching and ormed by someone like Comme%! 6t is really diicult to give a guideline to a
part which is good to be laser cut since many times it is done on a case by case basis!
/% -ATER .ET CUTTING
/%1 OVERVIE-
Co,e,t2o,() -(ter .et
Conventional water $et cutting is used to cut a broad range o material using a variety o water and abrasive
mi%tures under high pressure! The range o material that can be cut with a high degree o precision is enormous
varying rom ilm& oam and cardboard to stainless steel and granite and rom thickness o !44* to *4 inches!
Material loss is minimi"ed as comple% computer programs are deployed to ensure the most eicient layout and
widths o cuts are only !4* to !45 inches!
ATS PROPRIETARY: T6S D;C ;' ATS! 6T 6S C;N'6D=NT6A? 6N NAT
8/12/2019 Laser and Waterjet Capabilities[1]
3/5
Automation
Tooling
Systems
Cambridge Advanced Systems Division
MECHANICAL DESIGN STANDARDS
NUMBER:
PAGE:
ISSUE DATE:
REVISION:
PREPARED BY:
APPROVED BY:
/ of 5
September ! "##$
S%&'b()( * M% Bro+,
D3,(m24 -(ter .et
Dynamic water $et with Active Tolerance Control is an advance motion& (3D kinematics system that provides tiltcontrol to cut parts aster and with greater accuracy and is speciically designed to eliminate edge taper! This
advanced water $et technology is used on $obs re#uiring a higher degree o precision on corners! 6t can be usedon the same broad range o material as conventional water $et technology!
/%" MATERIALS
Wide variety o materials can be cut by water $et!
8/12/2019 Laser and Waterjet Capabilities[1]
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Automation
Tooling
Systems
Cambridge Advanced Systems Division
MECHANICAL DESIGN STANDARDS
NUMBER:
PAGE:
ISSUE DATE:
REVISION:
PREPARED BY:
APPROVED BY:
0 of 5
September ! "##$
S%&'b()( * M% Bro+,
/% DESIGN CONSIDERATIONS
All water $et cutting is programmed e%clusively using D' ormat! Thus& we save time and money i
we provide D' ormat to our shops! 6 not& they would be re#uired to draw and program parts to be
nested during cutting! 'lat views and developed lengths always need to be speciied on ATS drawings or water $et cutting!
Stainless Steel Sheet E inish has a polished inish! This should be used when appearance is
important! Speciy on the drawing which side is to be the polished surace! See igure * or an
e%ample drawing!
When multiple bent pieces made rom stainless steel with a E inish are to be placed side by side&
grain direction must be speciied on the print! This is to avoid have the grain run in one direction on
one piece and perpendicular on the piece ne%t to it! See igure * or an e%ample drawing!
7recision dowel holes& keyways& and any other design eatures re#uiring a tighter tolerance cannot
be water $et cut!
Material edges ater water $et cutting normally never need to be machined! 7rocess can produce
clean cut edges to a inish o *54 microinches! May see an increased surace inish roughness with
material beyond , thick! 7ieces are typically cutting at 14O o machine speed! 6 *54 microinches
inish is re#uired on thicker parts then it needs to be speciied on the print in the orm o a inish
mark and surace inish callout! See 'igure 8 or edge #uality!
7recision cutting o blanking dies rom pre3hardened materials
Typical lead time o water $et cutting is 53I days!
629 1% Gr(2, 2re4t2o, (, po)2;
8/12/2019 Laser and Waterjet Capabilities[1]
5/5
Automation
Tooling
Systems
Cambridge Advanced Systems Division
MECHANICAL DESIGN STANDARDS
NUMBER:
PAGE:
ISSUE DATE:
REVISION:
PREPARED BY:
APPROVED BY:
5 of 5
September ! "##$
S%&'b()( * M% Bro+,
629 "% E9e ='()2t3 2, re)(t2o, to 4't ;pee
/%$ -HEN TO USE
When discoloration o cut edge is not acceptable!
6 material thickness is greater than *)1 inch!
6 edge #uality needs to be better then that o a lame cut!
6tems that are odd proiles as a substitute or CNC& and contain various cutouts and can be cut rom lat
plate stock& are good candidates or water $et cutting! See 'igure ( or an e%ample o a water $et piece!
629 /% E>(mp)e of +(ter ?et p2e4e
/%@ Dr(+2,9 G'2e)2,e;
'or drawing sheet guidelines see section in the Detailing ) Drating Standards
ATS PROPRIETARY: T6S D;C ;' ATS! 6T 6S C;N'6D=NT6A? 6N NAT