SHIPBUILDING

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Document on Subject : "SHIPBUILDING"— Transcript:

1 SHIPBUILDING Copyright Promau 2017
SHIPBUILDING Copyright Promau 2017 www.davi.com 2 Since 1966 DAVI has designed, built and sold quality bending machines, with the highest technological level. The company's success has remained steady thanks to a

2 team of 140 highly qualified people
team of 140 highly qualified people, providing to each customer solutions , meeting their needs and achieving their targets . DAVI thanks our customers for allowing to study, with them, the best solutions

3 that gave so much added value to every
that gave so much added value to every built machine. This allowed DAVI to maximize our expertise and deepen our knowledge in bending machines. Thanks to our customers DAVI has built the heaviest machines on the market. DAVI

4 Introduction Copyright Promau 2017
Introduction Copyright Promau 2017 www.davi.com 3 DAVI INC DAVI CHINA Located in the most High - Technology region in Italy DAVI Branches : DAVI Headquarter : DAVI in the world Copyright Promau 2017 www.davi

5 .com 4 DAVI History DAVI’s hist
.com 4 DAVI History DAVI’s history is related to learning and achieving the best skills in bending process. Today, DAVI machines are designed using the most advanced 3D CAD, submitted to FEM analysis to improve their str

6 ength and sturdiness. 1966 1973
ength and sturdiness. 1966 1973 1980 2003 2016 DAVI’s designs are constantly improved, tested and applied to plate and angle roll production, and we hold the highest number of patents in the Industry.

7 Copyright Promau 2017 www.davi.com 5
Copyright Promau 2017 www.davi.com 5 Dozens of machines (often in excess of 100, including very HEAVY) are manufactured for the inventory , ready for immediate delivery DAVI Immediate Delivery Copyright Promau 2017 ww

8 w.davi.com 6 Solutions Quality D
w.davi.com 6 Solutions Quality DAVI mission is to provide Partnership Support Copyright Promau 2017 www.davi.com 7 Evaluating and studying each customer request and most appropriate, cost

9 effective solution Solutions DAVI
effective solution Solutions DAVI mission is to provide Copyright Promau 2017 www.davi.com 8 Research , Development and Innovation to e nsure the expected quality Quality DAVI mission is to p

10 rovide Copyright Promau 2017 www.da
rovide Copyright Promau 2017 www.davi.com 9 50 Years of solutions for bending Sharing our knowledge with customers, performed by 16 qualified & dedicated service engineers worldwide Professional Support DAVI missio

11 n is to provide Copyright Promau
n is to provide Copyright Promau 2017 www.davi.com 10 DAVI mission is to provide Creating relationships with the end users , with the purpose to follow them through their future needs , s uppor

12 ting over time DAVI customers Partn
ting over time DAVI customers Partnership Copyright Promau 2017 www.davi.com 11 Certification of Quality , Environmental , Safety Constantly verified and certified by DNV ISO 9001 ISO 14001 ISO 1800

13 1 DAVI Certification Copyright Pro
1 DAVI Certification Copyright Promau 2017 www.davi.com 12 For many years, DAVI’s financial strength has been rated “Most Reliable” by D&B DAVI Financial Strength Copyright Promau 2017 www.davi.com 13

14 DAVI for SHIPBUILDING Plate - J
DAVI for SHIPBUILDING Plate - J shape , Cylinder , Shells , U shape in different thicknesses (up to 6’’ HY 100) Structural Sections – Bar (easy way and hard way), Bulb Flat , T bar, Beam , Angle ( l

15 eg in and leg out) Copyright P
eg in and leg out) Copyright Promau 2017 www.davi.com 14 SHIPBUILDING and Fabricating Process Small & Large Prefabrication Structural Sections Copyright Promau 2017 www.davi.com 15 Pre - Fabricati

16 on Small pre - fabrication involve
on Small pre - fabrication involves the assembly, where necessary by welding, of sheet metal and pipe work to form small - sized pieces such as walkways etc . The welding is either

17 done electrically or using ga
done electrically or using gas in inert atmospheres . The main aim of large - scale pre - fabrication, which can be done both in parallel or in series with small pre - fabrication

18 , is the construction of semi
, is the construction of semi - worked items which make up elements in the base structure and plating . When assembled with the appropriate walls of insulation and sound - proofing

19 this type of pre - fabrication
this type of pre - fabrication can produce almost complete “blocks” which are then used to construct the ship . Copyright Promau 2017 www.davi.com 16 Plate Rolling Shell plates are

20 rolled using this method .
rolled using this method . A total of 3 rolls are used in plate rolling . Two lower rollers are driven and the plate is fed above them . One top roller, larger in diam

21 eter than the other two roller
eter than the other two rollers, rotates along with the motion of the plate . A hydraulic beam is used above the top roller to apply downward load on the plate . This me

22 thod is also often used to c
thod is also often used to correct the curvature obtained by hydraulic press . Today 4 rolls (with swingable top beam) can be found a valid alternative for its flexibility, n

23 ot being limited to bending on
ot being limited to bending only large diameters . 2 Copyright Promau 2017 www.davi.com 17 3 Roll with Beam (anti - deflection ) Similar configuration available in different lengths (from 13 - 65 feet)

24 and thicknesses 14 ft x 1’’
and thicknesses 14 ft x 1’’ Copyright Promau 2017 www.davi.com 18 3 Roll with Beam (anti - deflection ) 18 ft x 5/8’’ Similar configuration available in different lengths (from 13 - 65 feet) and thi

25 cknesses Copyright Promau 2017 www.
cknesses Copyright Promau 2017 www.davi.com 19 3 Roll with Beam (anti - deflection ) 40 ft x 1’’ Similar configuration available in different lengths (from 13 - 65 feet) and thicknesses Copyright Promau 20

26 17 www.davi.com 20 Y - Side Ro
17 www.davi.com 20 Y - Side Roll with lateral support X - Side Roll with lateral support W - Top Roll with support beam T - Infeed powered conveyor 3 Roll Process with Beam Cop

27 yright Promau 2017 www.davi.com 21
yright Promau 2017 www.davi.com 21 Ph . 1 – Plate loading Copyright Promau 2017 www.davi.com 22 Ph . 2 – Top Roll moves down Copyright Promau 2017 www.davi.com 23 Ph . 3 – Roll rotation Co

28 pyright Promau 2017 www.davi.com 24
pyright Promau 2017 www.davi.com 24 Ph . 4 – Side roll moves in to achieve the radius Copyright Promau 2017 www.davi.com 25 3 Roll Variable Geometry Similar configuration available in different lengths (from

29 8 - 20 Feet) and thicknesses Copyrig
8 - 20 Feet) and thicknesses Copyright Promau 2017 www.davi.com 26 3 Roll Variable Geometry Similar configuration available in different lengths (from 8 - 20 feet) and thicknesses Copyright Promau 2017 www.davi.c

30 om 27 3 Roll Variable Geometry (Vert
om 27 3 Roll Variable Geometry (Vertical) Similar configuration available in different lengths (from 6 - 16 feet) and thicknesses Copyright Promau 2017 www.davi.com 28 3 Roll Variable Geometry Co

31 pyright Promau 2017 www.davi.com 29
pyright Promau 2017 www.davi.com 29 4 Roll machine Rolled plate are stored in the stockyard (mostly in the same stockyard in which steel plates are stored) ready to be used during the assembly process. Copyright Pro

32 mau 2017 www.davi.com 30 The speci
mau 2017 www.davi.com 30 The special overhead beam can be removed in just a few seconds, allowing the bending of a closed can, even of small diameter. This increases the bending range substantially . 4 Roll machine with

33 Swingable Beam (Anti Deflection )
Swingable Beam (Anti Deflection ) Copyright Promau 2017 www.davi.com 31 4 Roll machine with Swingable Beam (Anti Deflection ) Copyright Promau 2017 www.davi.com 32 4 Roll machine with Swingable Be

34 am (Anti Deflection ) Copyright Pr
am (Anti Deflection ) Copyright Promau 2017 www.davi.com 33 4 Roll Similar configuration available in different lengths (from 2 - 20+ feet) and thicknesses Copyright Promau 2017 www.davi.com 34 Similar configur

35 ation are available in different lengths
ation are available in different lengths (from 6 - 20+ feet) and thicknesses 4 Roll Copyright Promau 2017 www.davi.com 35 4 Roll Similar configuration are available in different lengths (from 6 - 20+ feet) and thickness

36 es Copyright Promau 2017 www.davi.c
es Copyright Promau 2017 www.davi.com 36 4 Roll (Vertical) Similar configuration are available in different lengths (from 2 - 20 feet) and thicknesses Copyright Promau 2017 www.davi.com 37 4 Roll machine –

37 Prestress outboard Similar configura
Prestress outboard Similar configuration are available in different lengths (from 12 - 24 feet) and thicknesses Copyright Promau 2017 www.davi.com 38 4 Roll machine 1 2 3 4 Copyright Promau 2017 www.davi.c

38 om 39 4 Roll machine 5 6 7
om 39 4 Roll machine 5 6 7 8 Copyright Promau 2017 www.davi.com 40 Structural Sections For stiffening of sections at the bow and stern, the frames also need to be bent to the

39 required curvatures . Frames ca
required curvatures . Frames can be bent using both cold work and hot work according to radius and material . Inverse Curve Method : This is a typical work method used to

40 achieve required curvatures in f
achieve required curvatures in frames . The inverse curve of the required curvature is first drawn on the web of the frame . The web is then bent to the required curvature, t

41 he accuracy of which is checke
he accuracy of which is checked for until the inverse curve appears as a straight line on the web . Copyright Promau 2017 www.davi.com 41 Bulb Flat (and others Section ) Rolling A

42 ctive Curve Method : This innova
ctive Curve Method : This innovative working method is used to achieve required curvatures in bulb flat and other different Structural Sections . The required curvature is achieved b

43 y setting different parameters o
y setting different parameters on the CNC . The accuracy is much less dependent on operator skill and experience . DG Gauge and Camera system support the operator during the fina

44 l rolling operations . Copyright
l rolling operations . Copyright Promau 2017 www.davi.com 42 MCP frame Bender allows the fabrication of twin Bulb as well as (with the Universal set of Dies) all others sections ( Flat bars, Tee sections, Bulb bars,

45 Equal Angles, Unequal angles ) used as
Equal Angles, Unequal angles ) used as stiffening members for shell and deck plating and avoiding a secondary machine. Bulb Flat (and others Section ) Rolling Copyright Promau 2017 www.davi.com 43 The rolling proc

46 ess is much faster and less operator dep
ess is much faster and less operator dependant. Radius can be tighter than others traditional curving methods. Bulb Flat (and others Section ) Rolling Copyright Promau 2017 www.davi.com 44 Testimonial Copyrigh

47 t Promau 2017 www.davi.com 45 Cour
t Promau 2017 www.davi.com 45 Courtesy by NASA Web - site Certified at the TOP of High Tech & Quality Copyright Promau 2017 www.davi.com 46 Seminars Copyright Promau 2017 www.davi.com 47 DAVI 50 YEARS

48 OF ROLLING SOLUTIONS Contact infor
OF ROLLING SOLUTIONS Contact information: Steve Bonnay ( Canada & Special Project) – sbonnay@davi.com Matteo Rossi (USA) – matteor@davi.com Copyright Promau 2017 www.davi.com 48 … t