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• Geotextiles & Geosythetics
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Saskatoon 306-931-9255 Regina 306-721-9333 BrockWhite.ca
The Strength of Many.
The Power of One.
The Strength of Many.
The Power of One.
1036 Waverley Street
Winnipeg, MB R3T 0P3
Phone: 204-896-1333
www.groupwd.com
The Strength of Many. The Power of One.
Our Lineup of COST EFFECTIVE Composite
Water & Sewer Products:
Composite Manhole
Frame & Cover
Cover fits City of WPG
The Strength of Many.
The Power of One.
PI Valve Boxes
Representing the following quality products:
K. Brent Pooles, B.A., C.I.M.
bpooles@groupwd.com
Jeffrey K. Warren
jkwarren@groupwd.com
Kurt Chekosky, P.Eng.
kchekosky@groupwd.com
WD50F Frames
UNDER 40 LBS,
NON-CORRODING,
LOCKABLE & SEALABLE!
WD82 PI - MWSB Approved
WD46 PI - City of WPG Approved
Type A PI - City of Regina Approved
Type C PI - City of Saskatoon Approved
LIGHTER, STRONG & NON-CORRODING!
Representing the Following Quality Products:
1036 Waverley Street
Winnipeg, MB R3T 0P3
Phone: 204-896-1333
Fax: 204-896-6969
www.groupwd.com
Our lineup of composite water & sewer prodcts:
Robar 1696-2B
New Robar all stainless steel two bolt
multi-range coupling:
- Non-Corroding
- Large OD Range
- Easy Installation
PI Valve Boxes
WD82 PI - MWSB Approved
WD46 PI - City of Winnipeg Approved
Type A PI - City of Regina Approved
Type C PI - City of Saskatoon Approved
LIGHTER, STONG & NON-CORRODING!
WD82 PI - MWSB Approved
WD46 PI - City of Winnipeg Type A PI - City of Regina Approved
Type C PI - City of Saskatoon Approved
LIGHTER, STONG & NON-CORRODING!
WD50SC Manhole Cover
Fits City of Winnipeg WD50F Frames
- < 40 Lbs.
- Non-corrosive
- Non-conductive
- Lockable & Sealable
Fits City of Winnipeg WD50F Frames
- < 40 Lbs.
- Non-corrosive
- Non-conductive
- Lockable & Sealable
Service Boxes
Full product line of lighter,
non-corroding service boxes
for Manitoba & Saskatchewan
Representing the following quality products:
K. Brent Pooles, B.A., C.I.M.
bpooles@groupwd.com
Jeffrey K. Warren
jkwarren@groupwd.com
Kurt Chekosky, P.Eng.
kchekosky@groupwd.com
1036 Waverley Street
Winnipeg, MB R3T 0P3
Phone: 204-896-1333
Fax: 204-896-6969
www.groupwd.com
Our lineup of composite water & sewer prodcts:
Robar 1696-2B
New Robar all stainless steel two bolt
multi-range coupling:
- Non-Corroding
- Large OD Range
- Easy Installation
PI Valve Boxes
WD50SC Manhole Cover
Service Boxes
Full product line of lighter,
non-corroding service boxes
for Manitoba & Saskatchewan
PROUDLY CANADIAN
Our lineup of composite water & sewer prodcts:
Robar 1696-2B
New Robar all stainless steel two bolt
multi-range coupling:
PI Valve Boxes
WD82 PI - MWSB Approved
WD46 PI - City of Winnipeg Approved
Type A PI - City of Regina Approved
Type C PI - City of Saskatoon Approved
Service Boxes
Full product line of LIGHTER,
NON-CORRODING
service boxes for MB & SK!
& more!
-Non-Corroding
-Large OD Range
-Easy Installation
Robar 1696-2B
New Robar all stainless steel
two bolt multi-range coupling:
K. Brent Pooles, B.A., C.I.M.
bpooles@groupwd.com
Jeffrey K. Warren
jkwarren@groupwd.com
Kurt Chekosky, P.Eng.
kchekosky@groupwd.com
as shale and sandstone, which are formed when silt and sand are
layered and compressed over time. These rocks are like a firmly
packed deck of cards, which is stronger and more uniform in one direction,
but may deform or slide apart more easily in another.
Subtractive and formative manufacturing, on the other hand,
use or produce materials that are relatively isotropic, meaning
their physical properties are roughly the same in all directions –
like sculptures from solid rock.
This does not mean anisotropic materials are inherently weaker,
but more design expertise is required to build parts for practical
use. There are advantages and constraints to each method of
3D printing. Properties such as impact energy and fatigue strength
may differ significantly from conventionally manufactured parts,
and engineers must mitigate any material imperfections that may
exist from the 3D printing process.
Whether a manufacturer chooses an additive technique depends
on factors such as the size of the production run, cost and
type of building materials. While additive manufacturing is impractical
for high-volume production runs (where casting makes
more sense), it excels in its own niche: rapid prototyping and manufacturing
short runs of strong, lightweight custom parts.
Why is optimization important for 3D
printed parts?
Although additive manufacturing offers design freedom, it’s critical
the parts can do their job as good as or better than those made
by conventional methods. Design optimization is required to fully
exploit the additive technique.
Engineers have historically been limited to standardized shapes
and designs of conventional manufacturing methods. Sheldon
Hill, manager of the Saskatchewan Research Council’s (SRC)
Industrial Engineering team, explained, “Engineers are largely
constrained in the design process to simple beams, plates and, in
the most complex cases, trusses. You end up with a limited number
of shapes and structures you can deal with. We want to give the
engineer more flexibility in designing things.”
Designing complex organic shapes, without casting, frees engineers
to reimagine and transform structural parts essentially from
scratch. In doing so, they can trim all excess material.
Optimization means getting more out of less. When you remove
the non-stress bearing material of a bracket, for example, the resulting
piece has a higher strength-to-weight ratio and serves the
same function, but with less material and weight. This is especially
important if you’re 3D printing for biomedical purposes, such as
bone or joint replacements, or aerospace, where excess material
means the difference between flying and not flying.
The high cost of additive-manufactured parts limits their applications
in other industries, however there are reasons one may
consider them. Wherever excess weight hurts the efficiency of a
process, a strong lightweight part can help. The resilience of 3D
printed parts is also desirable where the cost of frequent maintenance,
downtime and part replacements affect the bottom line.
SASKATCHEWAN RESEARCH COUNCIL
46 Think BIG | Quarter 3 2019 | saskheavy.ca
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