Welding
The Letter Sites Society and Organization
info:
Engineering Specialty Certification:
Engineering and Surveying Associations
Architecture:
Building Regulations:
Construction
Education
Detailing Programs:
Engineering:
Joist and Decking:
Miscellaneous sites:
CAD:
Allen & MJC
This guide
contains links to significant Mechanical Engineering resources on the
internet. The first grouping has a lot of good information.
Broader Topics
1. WWW Virtual
Library Engineering:
contains general sources of engineering information,
including a vendor list.
http://www.eevl.ac.uk/wwwvl.html
2. EEVL:
The Edinburgh Engineering Virtual
Library (EEVL) is a database of engineering resources and a newsgroup that can
be searched or browsed.
http://www.eevl.ac.uk/wwwvl.html
3. EELS:
Engineering Electronic Library,
Sweden (EELS)
http://eels.lublu.se/
4. Mechanical
Engineering
http://icrank.com/
5. Construction
Information Services:
contains sites of value to those in the A/E/C
(Architecture, Engineering, and Construction) industry.
http://ctca.unb.ca/CTCA/sources
Catalogs and
Databases
1. ICE Search:
This form
interface allows you to search the ICE index for engineering related links
pertaining to one or more keywords. Each link (URL, name, and description) in
every category of the ICE index will be searched. It may take a couple of
minutes to generate results.
http://www.englib.cornell.edu/ice/search.html
2. Engineer Supply
http://engineersupply.com/
3. Engineering Technical Data Reference
Tables:
This page provides a listing of engineering reference data that is
commonly found in reference books. Includes phyiscial properties of materials
-includes Modulus of Elasticity, Modulus of Rigidity, Poisson's Ratio and Unit
Weight information as well as specific data for varous material types. Data
for Aluminum alloys, Beryllium Copper, Brass, Carbon Steel, Cast Iron-grey,
Copper, Douglas Fir, Glass, Inconel, Lead, Magnesium, Molybdenum, Monel metal,
Nickel silver, Nickel steel, Phosphor bronze, and Stainless steel is provided.
Also: Analysis of Sections and Shapes - T100, Dimensions and Data for
Fasteners - T200, Shear, Moment and Deflections of Beams - T300, Properties of
Structural Member Shapes - T400, for a wide variety of materials and
shapes.
http://Ourworld.Compuserve.com/homepages/MJVanVoorhis/techdata.htm
4. Universal Parts Center:
Commercial and
government stocked parts from Industry Net.
http://www.industry.net/home/UPC
5. DesignInfo:
Searchable on-line catalog of
engineering products and vendors using engineering parameters.
http://www.designinfo.com/
6. Free MDS:
Free online plastic materials
information source from nearly every material supplier in North America. The
site also has access to plastic materials information from regions outside
North America. This is provided by IDES, Inc., which also provides an online
plastic materials web seach, after registration.
http://www.freemds.com/
7. MatWeb:
Free online materials information
resource - search for properties, find specific materials, find material by
constituent elements.
http://www.matweb.com/
8. Electronic Design Library:
A U Mass library
for support of undergraduate design projects.
http://www.ecs.umass.edu/mie/labs/mda/dlib/dlib.html
9. Mechanical Analysis:
The Mechanical Analysis
Home Page is an information focal point for analysts and scientists. The page
contains links to subjects such as heat transfer, stress and dynamic analysis
and material properties. The page also contains a list of consultants and you
with access to a broad variety of scientific and technical information and
analysis software
http://www.highfiber.com/~tes/analysis.htm
10. NIST Virtual Library (NVT):
NVL provides you
with access to a broad variety of scientific and technical information
resources in different electronic formats, from online information to CD-ROMs
to databases and electronic documents. See also the full NIST site.
http://www.nist.gov/
http://www.nist.gov/welcome.html
11. Engineering Information Guide (EIG):
The EIG
is maintained by the University of Strathclyde's CAD Centre and contains
pointers to sites, standards, mail lists, etc. pertaining to engineering
design.
http://www.cad.strath.ac.uk:/EngInfoGuide.html
12. Multi-Media Handbook for Engineering
Design:
The Multi-Media Handbook for Engineering Design is a hyper-media
database providing information relating to machine design. It is intended to
provide a concise source of key information giving the user quick and easy
access to elementary engineering design principles, design details of machine
elements and specific component information.
http://www.dig.bris.ac.uk/hbook
13. University of Utah PartNet Online Catalog
System:
This server offers information about the a prototype service for
finding parts via the WWW.
http://part.net/
14. Engineering
Software Database:
This ASME-sponsored database is a fully indexed,
searchable system, with descriptions of more than 6000 engineering programs.
As a web based system, the database supports any number of direct URL
references to your home site, email address, or other links you choose. You
can add files to our public FTP site such as demonstration versions of your
product, shareware files, documentation, or other files you would like
associated with your software record. All files submitted to the archive, as
well as the software database records, are published on CDROM for even wider
distribution.
http://www.mecheng.asme.org/
15. Tribology: An On-Line Information
Resource:
Almost every item of machinery has moving parts, bearings, gears,
slides, seals and many others. The successful operation of moving mechanical
equipment is dependent on the smooth running and long life of these parts. It
is research in the field of tribology that has paved the way for reliability
and longevity in industrial machines. Lists: Conferences, Jobs, Journals,
ImEechE Design data guides, etc.
http://www.shef.ac.uk/~mpe/tribology/tribo.html
16. Firmendatenbank:
Informationen über mehr
als 135.000 deutsche Firmen in bekannter Hoppenstedt-Qualität.
Basisinformationen erhalten Sie dabei bis hin zum Kurzportrait völlig
kostenfrei. Alles Wissenswerte ist in unserer "Einführung" dokumentiert.
http://www.firmendatenbank.de/
17. NASA Technical Report Server (NTRS):
This
server is an experimental service that allows simultaneous searching of
various NASA abstract and technical report services.
http://techreports.larc.nasa.gov/cgi-bin/NTRS
18. Catalog of the Engineering Case Library:
This server provides accounts of real engineering work written for use in
engineering education, and is provided by the Center for Case Studies in
Engineering at the Rose-Hulman Institute of Technology. There are cases from
almost all disciplines of engineering. The full text version of the catalog is
also available via anonymous ftp from: alfred.carleton.ca in directory
/pub/civeng/ECL/ as ASCII text or as a WordPerfect file.
http://www.civeng.carleton.ca/ECL
19. AutomationNET:
Database of Vendors,
Consultants and Systems Integrators in the field of Engineering Automation
under the subject Mechanical Engineering On-Line Services.
http://www.automationnet.com/
Free Software and
Information Services
1. CFX User Subroutine
Archive:
Fortran subroutines for modifying default physical models in
CFX.
http://bgtibm1.me.uiuc.edu/people/d-creech/cfd/subroutine
2. CyclePad:
Download a thromodynamics
simulator. CyclePad enables students to construct and analyze a wide variety
of thermodynamic cycles. A hypertext explanation facility provides the student
with access to the chain of reasoning underlying the derivation of each value.
CyclePad is currently being field-tested in undergraduate engineering classes
at Northwestern University, The U.S. Naval Academy, and Oxford University.
http://www.qrg.ils.nwu.edu/projects/NSF/Cyclepad/aboutcp.htm
3. DSIFcalc:
DSIFcalc is a computer program for
processing data obtained during one- or three-point bend (conventional and
inverted) impact fracture tests.
http://www.tu.kielce.pl/~rokach/dsifcalc.htm
4. Mechanical Engineering Software:
PC software
that may be downloaded from the EDS Forum
http://www.gamorris.co.uk/forum_mech.htm
5. Rotor Dynamics:
Rotor dynamics is a
collective term for rotating machines and can be split into the sub-groups
that make it up. These are rotating shafts, bearings, seals, out of balance
systems, instability and condition monitoring. This site povides technical
tutotials on these topics.
http://www.brad.ac.uk/research/mbdmst/rotordynamic
6. Vibration Data:
Free software and tutorials
for vibration and shock analysis
http://www.vibrationdata.com/
7. Windmill:
Free software to connect almost
any instrument with an RS232 (COM) port to a Windows program like Excel.
Includes programs to save and chart the data, and control the instrument.
Applications include strain and flow measurement. Need to subscribe to free
newsletter.
http://www.windmillsoft.com/
8. WinPipeD:
Free software: a professional,
fully-featured Windows program for pipe hydraulics in steady multiphase flow.
It utilizes most industry-standard equations and correlations, packaged in an
easy-to-use interface. Available for download for non-commercial use.
http://www.neosoft.com/~dshaw/winpiped.html
9. Engineering Workstations server:
Engineering
Workstations is a server for document authoring at the College of Engineering
University of Illinois - Urbana-Champaign. It points to a wide variety of
campus and engineering related information. Of special interest are the
software testbeds which include online simulations of milling and drilling,
fixture modeling, and cutting fluid evaluation.
http://www.cen.uiuc.edu/
10. Finite Element Analysis Software:
Roger
Young's private catalog of free, electronically available FE software with a
pointer to a page on general FE resources, including newsgroups and
listservers.
http://www.engr.usask.ca/~macphed/finite/fe_resources/fe_resources.html
11. Dynamic Simulation Software List:
Kalle
Marjamaki`s list emphasizes fluid dynamics but general simulation software is
listed.
http://matwww.ee.tut.fi/~piche/fluidpower/softwarelist.html
Internet Mechanical Engineering Sites
1. Engineers for Engineers Information:
Links to many sites useful to the Scientist and to the Professional
Engineer.
http://www.engineers4engineers.co.uk/
Jobs
1. Job Search for Engineers[InterEC.NET]:
This web site specifically set up for engineers looking for a job over the
Internet. It is organized into sections by engineering discipline and contains
job listings from employers, direct links to the employment web sites of
companies that hire engineers, links to some of the best job search databases
on the Internet, newspaper-classified advertisement from across the country,
salary surveys and unemployment data specific to your field of specialization,
and various other resources of general interest to engineers looking for a
job.
http://www.interec.net/jobsearch/mechanical.html
2. Engineering/Manufacturing Jobs:
A link to job
openings for engineers and other professionals
http://www.nationjob.com/engineering
3. EngineeringJobs.Com:
Another good source of
job openings. The site also features links to professional engineering
societies and organizations, sources for engineering tools, and resumes of
job-seeking engineers.
http://www.engineeringjobs.com/
4. Engineering Job Source:
Job information for
engineers in all states, but specializing in the Great Lakes region.
http://www.engineerjobs.com/
5. Pro/E Job Network:
Pro/Engineer software
specific - See also IDEAS Job Network
http://www.pejn.com/
6. Careers In
Construction Includes engineering jobs:
http://www.careersinconstruction.com/
Misc.
Information and Services
1. Wankel Rotary
Combustion Engines (RCE) and Vehicles:
http://www.monito.com/wankel/
2. Berkeley Lab Room:
Vibrating Beam Experiment
- courseware.
http://bits.me.berkeley.edu/~beam/spr95/labroom.html
3. IndustryNET:
IndustryNET carries focused
mechanical engineering industry news and many websites for companies in this
line of business.
http://www.industry.net/
4. Ultrasound Critical-angle Reflectometry (UCR):
New method for studying the mechanical properties of materials (the
complete stiffness matrix for transv isotropic materials) from a single
surface. Current application is in a clinical and a laboratory setting to
investigate the structure- function relationship in bone.
http://www.swmed.edu/home_pages/ucrlab
5. Advanced Technologies for Commercial Buildings:
A building professional's guide to 60 environmentally responsible
technologies and materials for use in commercial buildings. Includes plumbing,
mecahnical systems for buildings.
http://www.advancedbuildings.org/
6. RobotBooks.Com:
Selected Robot Books,
electronics, computers, magazines, ect.
http://www.robotbooks.com/
7. Philadelphia IEEE Consultants' Network:
Directory of consultants with one free day of consulting. The IEEE
Consultants' Network consists of IEEE members, in private practices, who offer
state-of- the-art consulting services. Some of the areas of expertise
represented by our members include electronic, computer software and hardware,
digital and analog design, forensics, power systems, new product development,
quality systems and technology management.
http://www.ece.vill.edu/conet
8. Patent.Info:
John Moetteli offers legal
advice and access to laws and design, engineering, and prototyping info on his
site.
http://www.uspatentinfo.com/
9. Internet Patent News Service's
(IPNS):
Internet Patent News Service's (IPNS) WWW Patent Searching home
page can search all US patents since 1970 using the US patents Manual of
Classification.
http://metalab.unc.edu/patents/intropat.html
10. AI Webography of AI in Design:
David Brown
has has developed a Webography of AI in Design set of resouces.
http://www.cs.wpi.edu/Research/aidg/AIinD-hotlist.html
Online
Calculations
1. DC Gear Motor Sizing:
Precision MicroDynamics Inc. provides a CGI program/resource to help size
DC gear motor systems. Users fill out a form which details the load
characteristics and motor characteristics among other things. By pressing the
submit button, the form processor takes over and performs the computations. A
second level of analysis provides the torque-speed, torque-power,
torque-efficiency and torque-current plots. These can be downloaded to your
computer simply by saving the GIF that is generated.
http://pmdi.com/php2.php
2. Thermodynamic Property Calculator:
This is
aforms-based CGI application to calculate the thermodynamic properties of
fluids (liquid and/or vapor). Most of the equations are taken from the
compilation "Thermodynamic Properties in SI" (TPSI), by W. C. Reynolds.
http://adam.caltech.edu/cgi-bin/props
3. The Expert System for Thermodynamics Free Java
software and applets for thermal, radiation, and gas calculations.
http://voyager5.sdsu.edu/testcenter
4. CyberCut:
CyberCut is the gateway to a series
of interactive web pages that has become on on-line CAD tool linked directly
to the Integrated Manufacturing and Design Environment (IMADE), a rapid
prototyping system located at the Integrated Manufacturing Lab at the
University of California at Berkeley.
http://kingkong.me.berkeley.edu/cybercut
Publications
1. Mechanical
Engineering:
Online Sponsored by the ASME. Back issues available.
http://www.memagazine.org/index.html
2. EESE:
Engineering E-journal SE: over 100
engineering e-journals
http://www.eevl.ac.uk/eese/
3. Journal of Mechanical Design (JMD):
The
American Society of Mechanical Engineers (ASME) publishes the JMD and this
server provides information on the scope and purpose of the journal, the
editorial staff, and information for authors. There is also an index to
previous volumes and articles. Forms for submitting and reviewing technical
papers are also provided.
http://www-jmd.engr.ucdavis.edu/jmd
4. Progressive Engineer:
This free online
magazine focuses on engineering in the mid-Atlantic region. See especially the
Engineering Resources.
http://www.progressiveengineer.com/
5. Machine Design Online:
Design Engineering
information and events.
http://www.machinedesign.com/index1.html
6. Journal of Mechanical Engineering (Strojnicky
Casopis):
It is published by Institute of Materials and Machine Mechanics,
Slovak Academy of Sciences, Bratislava, Slovak Republic.
http://www.machinedesign.com/index1.html
7. Process Pumps & Filtration On-Line:
A
webzine with articles, on-line principle and fundamental catalogs, new product
and technology introductions, and engineering educational and resource
materials.
http://www.frontpageaccess.com/pitt
8. Carmagen Engineering Report:
Free engineering
newsletter on hydrocarbon piping and storage.
http://www.carmagen.com/newslet.html
9. Windmill Software Newsletter:
Called Monitor,
the newsletter includes data acquisition tips, new product releases, URLs of
engineering, scientific and technology resources, and more.
http://www.windmill.co.uk/newsletter.html
World
Wide Web Virtual Mechanical
Engineering
1. University ME
Departments:
http://cdr.stanford.edu/WWW-ME/uni.html
2. Mechanical Engineering Institutes and
Societies:
http://cdr.stanford.edu/WWW-ME/special.html
3. Mechanical Engineering Vendor Pages:
http://cdr.stanford.edu/WWW-ME/vendor.html
4. Mechanical Engineering Forums and
Newsgroups:
http://cdr.stanford.edu/WWW-ME/forums.html
5. EELS:
Search all Internet Engineering
Resources Provided as a complement to "Engineering Electronic Library Sweden"
(EELS).
http://www.ub2.lu.se/eel/ae
6. Science, Mathematics, Engineering and Technology
Education Library http://www.smete.org/smete/info/index.html
7. ICE:
Internet Connections for
Engineering
http://www.englib.cornell.edu/ice/
8. AVEL:
Australian Virtual Engineering Library
(AVEL)
http://avel.edu.au/
9. Directory of Science and Engineering
Resources:
http://scicentral.com/
10. Engineers for Engineers:
Information and
links to many sites useful to the Scientist and to the Professional
Engineer.Professional Engineers
http://www.engineers4engineers.co.uk/
11. Yahoo Engineering Directory:
http://www.yahoo.com/Science/Engineering
12. BUBL Links:
Engineering and Technology
http://bubl.ac.uk/link/eng.html
13. ENGWHO:
The Engineering Search Engine
http://engwho.hypermart.net/
14. Engineering Fundamental (efunda)
http://efunda.com/home.cfm
15. Engineering Search Engine (Australia)
http://www.et.deakin.edu.au/search
16. The BigHub Megasearch
http://www.thebighub.com/Search_Categories.asp?intKey=135
Here's the Mig deal:
To get deeper penetration you do this (in order of usefulness):
Increase wirespeed, decrease stickout, drag the torch, switch to straight
CO2, use skinnier wire.
To get shallower penetration you do this (in order of usefulness):
Reduce wirespeed, increase stickout, push the torch, switch to argon/CO2
mix, use thicker wire.
To get a larger bead you do this (in order of usefulness): Increase
wirespeed, decrease travel speed, increase stickout
To get a smaller bead you do this (in order of usefulness): Decrease
wirespeed, increase travel speed, decrease stickout
To get a higher, narrower (colder) bead you do this (in order of
usefulness): Decrease voltage, drag torch, increase stickout
To get a flatter, wider (hotter) bead you do this (in order of
usefulness): Increase voltage, push torch, decrease stickout
To get a faster deposition rate you do this (in order of usefulness):
Increase wirespeed, increase stickout, use smaller wire.
To get a slower deposition rate you do this (in order of usefulness):
Decrease wirespeed, decrease stickout, use larger wire. Note that when you change the stickout you change the current, so you
might need to adjust the wirespeed to compensate. Same with changing wire
size, obviously.
CAST AND FORGET - NOT - & REPAIR
Die castings are much easier since there is no contamination of the metal.
The exact alloy of aluminum makes a big difference for welding. The filler rods recommended by Alcotec for castings are:
Base metal Filler rod A356 A356 , 4008 , 4010 A380 4145 A319 4145
Alcotec is the largest manufacturer of Aluminum welding filler materials.
www.alcotec.com/
Their catalog is a priceless source of aluminum welding alloy data. Ask your local welding supplier to get you a copy or contact them directly.
Washing the weld is a common practice for architectural or decorative stuff, but for critical parts it is not recommended.
A gas Lens collet body will allow you to extend the tungsten further from the gas cup, allowing access to corners better.
Zirconium tungstens allow greater current with smaller tungstens for AC TIG.
The best bet for cleaning the welds is either bead blasting or a stainless steel wire brush on a die grinder.
5356 is not a recommended rod for engine castings. 5356 is susceptable to corrosion cracking if exposed to temperatures above 150degF for prolonged periods. Most of the 5000 series fillers have this problem.
A356, 4008 and 4010 are all the same basic alloy , just in slightly different states of purity.
A356 is a Aluminum-Silicon-Magnesium alloy used for high temperature castings like manifolds and engine blocks.
A380, A319 and 4145 are Aluminum-Copper alloys used for strength. Never mix Aluminum-Copper alloys with Aluminum-Magnesium alloys. The 2 react to heat differently and cracks can form.
Welding / Cutting
Equipment
Welcome To Jetline Engineering
Plasma cutting
Welding Safety Equipment
Welding filler metals
Thermite
Gas welding/cutting/heating
Tungstens + Grinders
Pipe / Tube weld prep
Plastic/Ultrasonic Welding
Shop
Tools
Woodworking
Machine tools
3-Phase converters
Abrasives
Materials and Hardware
Bike stuff
Hardware
Mechanical/Electrical parts
Tool / Knife steels
Railing/Ironwork parts
Online Metals suppliers
Plastics
Knives
Knifemaking
Blacksmithing
