MTS 609 User Manual
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Series 609 Alignment Fixture
Product Information
015-031-901 E
Copyright information © 1993, 1999, 2001, 2008 MTS Systems Corporation. All rights reserved.
Trademark information MTS is a registered trademark of MTS Systems Corporation within the United
States. This trademark may be protected in other countries.
Publication information
Manual Part Number Publication Date
150319-01 A August 1993
015-031-901 B September 1999
015-031-901 C February 2001
015-031-901 D November 2001
015-031-901 E March 2008
2
Manual Template 4.3
Contents
Technical Support 5
How to Get Technical Support 5
Before You Contact MTS 5
If You Contact MTS by Phone 6
Problem Submittal Form in MTS Manuals 7
Preface 9
Before You Begin 9
Conventions 10
Documentation Conventions 10
Introduction 13
Misalignment 15
About Concentric Misalignment 15
Adjust Concentric Alignment 16
About Angular Misalignment 17
Adjust Angular Alignment 18
Safety Information 21
Hazard Placard Placement 21
Installation 23
Series 609 Alignment Fixture Product Information Contents
3
Specimen Preparation 29
About Gaged Specimens 29
Round Thick Diameter Specimens 31
Calculating Bending Strain—Round Thick Diameter Specimens 32
Round Thin Diameter Specimens 34
Calculating Bending Strain—Round Thin Diameter Specimens 35
Flat Thick Specimens 37
Calculating Bending Strain—Flat Thick Specimens 38
Flat Thin Specimens 40
Calculating Bending Strain—Flat Thin Specimens 41
Notched Round Thick Diameter Specimens 42
Calculating Bending Strain—Notched Round Thick Diameter Specimens 43
Notched Round Thin Diameter Specimens 44
Calculating Bending Strain—Notched Round Thin Diameter Specimens 45
Notched Flat Thick Specimens 48
Calculating Bending Strain—Notched Flat Thick Specimens 49
Notched Thin Flat Specimens 51
Calculating Bending Strain—Notched Thin Flat Specimens 52
Alignment Procedure 55
Installing a Gaged Specimen 56
Adjust the Concentric Alignment 58
Adjust the Angular Alignment 63
Check the Alignment 67
4
Contents
Series 609 Alignment Fixture Product Information
Technical Support
How to Get Technical Support
How to Get Technical Support
Start with your
manuals
Technical support
methods
MTS web site
www.mts.com
E-mail techsupport@mts.com
Telephone MTS Call Center 800-328-2255
Fax 952-937-4515
The manuals supplied by MTS provide most of the information you need to use
and maintain your equipment. If your equipment includes MTS software, look
for online help and README files that contain additional product information.
If you cannot find answers to your technical questions from these sources, you
can use the internet, e-mail, telephone, or fax to contact MTS for assistance.
MTS provides a full range of support services after your system is installed. If
you have any questions about a system or product, contact MTS in one of the
following ways.
The MTS web site gives you access to our technical support staff by means of a
Technical Support link:
www.mts.com > Contact Us > Service & Technical Support
Weekdays 7:00 A.M. to 5:00 P.M., Central Time
Please include “Technical Support” in the subject line.
Before You Contact MTS
MTS can help you more efficiently if you have the following information
available when you contact us for support.
Know your site
number and system
number
Series 609 Alignment Fixture Product Information Technical Support
The site number contains your company number and identifies your equipment
type (material testing, simulation, and so forth). The number is usually written on
a label on your MTS equipment before the system leaves MTS. If you do not
have or do not know your MTS site number, contact your MTS sales engineer.
Example site number: 571167
When you have more than one MTS system, the system job number identifies
which system you are calling about. You can find your job number in the papers
sent to you when you ordered your system.
Example system number: US1.42460
5
If You Contact MTS by Phone
Know information from
prior technical
If you have contacted MTS about this problem before, we can recall your file.
You will need to tell us the:
assistance
• MTS notification number
• Name of the person who helped you
Identify the problem Describe the problem you are experiencing and know the answers to the
following questions:
• How long and how often has the problem been occurring?
• Can you reproduce the problem?
• Were any hardware or software changes made to the system before the
problem started?
• What are the model numbers of the suspect equipment?
• What model controller are you using (if applicable)?
• What test configuration are you using?
Know relevant
computer information
If you are experiencing a computer problem, have the following information
available:
• Manufacturer’s name and model number
• Operating software type and service patch information
• Amount of system memory
• Amount of free space on the hard drive in which the application resides
• Current status of hard-drive fragmentation
• Connection status to a corporate network
Know relevant
For software application problems, have the following information available:
software information
• The software application’s name, version number, build number, and if
available, software patch number. This information is displayed briefly
when you launch the application, and can typically be found in the “About”
selection in the “Help” menu.
• It is also helpful if the names of other non-MTS applications that are
running on your computer, such as anti-virus software, screen savers,
keyboard enhancers, print spoolers, and so forth are known and available.
If You Contact MTS by Phone
Your call will be registered by a Call Center agent if you are calling within the
United States or Canada. Before connecting you with a technical support
specialist, the agent will ask you for your site number, name, company, company
address, and the phone number where you can normally be reached.
Technical Support
6
Series 609 Alignment Fixture Product Information
Problem Submittal Form in MTS Manuals
If you are calling about an issue that has already been assigned a notification
number, please provide that number. You will be assigned a unique notification
number about any new issue.
Identify system type To assist the Call Center agent with connecting you to the most qualified
technical support specialist available, identify your system as one of the
following types:
• Electromechanical materials test system
• Hydromechanical materials test system
• Vehicle test system
• Vehicle component test system
• Aero test system
Be prepared to
Prepare yourself for troubleshooting while on the phone:
troubleshoot
• Call from a telephone when you are close to the system so that you can try
implementing suggestions made over the phone.
• Have the original operating and application software media available.
• If you are not familiar with all aspects of the equipment operation, have an
experienced user nearby to assist you.
Write down relevant
Prepare yourself in case we need to call you back:
information
• Remember to ask for the notification number.
• Record the name of the person who helped you.
• Write down any specific instructions to be followed, such as data recording
or performance monitoring.
After you call MTS logs and tracks all calls to ensure that you receive assistance and that action
is taken regarding your problem or request. If you have questions about the status
of your problem or have additional information to report, please contact MTS
again and provide your original notification number.
Problem Submittal Form in MTS Manuals
Use the Problem Submittal Form to communicate problems you are experiencing
with your MTS software, hardware, manuals, or service which have not been
resolved to your satisfaction through the technical support process. This form
includes check boxes that allow you to indicate the urgency of your problem and
your expectation of an acceptable response time. We guarantee a timely
response—your feedback is important to us.
The Problem Submittal Form can be accessed:
• In the back of many MTS manuals (postage paid form to be mailed to MTS)
• www.mts.com > Contact Us > Problem Submittal Form (electronic form to
be e-mailed to MTS)
Series 609 Alignment Fixture Product Information Technical Support
7
Problem Submittal Form in MTS Manuals
Technical Support
8
Series 609 Alignment Fixture Product Information
Before You Begin
Preface
Before You Begin
Safety first! Before you attempt to use your MTS product or system, read and understand the
Safety manual and any other safety information provided with your system.
Improper installation, operation, or maintenance of MTS equipment in your test
facility can result in hazardous conditions that can cause severe personal injury or
death and damage to your equipment and specimen. Again, read and understand
the safety information provided with your system before you continue. It is very
important that you remain aware of hazards that apply to your system.
Other MTS manuals In addition to this manual, you may receive additional MTS manuals in paper or
electronic form.
If you have purchased a test system, it may include an MTS System
Documentation CD. This CD contains an electronic copy of the MTS manuals
that pertain to your test system, including hydraulic and mechanical component
manuals, assembly drawings and parts lists, and operation and preventive
maintenance manuals. Controller and application software manuals are typically
included on the software CD distribution disc(s).
Series 609 Alignment Fixture Product Information Preface
9
Conventions
DANGER
WARNING
CAUTION
Conventions
Documentation Conventions
The following paragraphs describe some of the conventions that are used in your
MTS manuals.
Hazard conventions As necessary, hazard notices may be embedded in this manual. These notices
contain safety information that is specific to the task to be performed. Hazard
notices immediately precede the step or procedure that may lead to an associated
hazard. Read all hazard notices carefully and follow the directions that are given.
Three different levels of hazard notices may appear in your manuals. Following
are examples of all three levels.
Note For general safety information, see the safety information provided with
your system.
Danger notices indicate the presence of a hazard with a high level of risk which,
if ignored, will result in death, severe personal injury, or substantial property
damage.
Warning notices indicate the presence of a hazard with a medium level of risk
which, if ignored, can result in death, severe personal injury, or substantial
property damage.
Caution notices indicate the presence of a hazard with a low level of risk which,
if ignored, could cause moderate or minor personal injury, equipment damage, or
endanger test integrity.
Notes Notes provide additional information about operating your system or highlight
easily overlooked items. For example:
Note Resources that are put back on the hardware lists show up at the end of
the list.
Special terms The first occurrence of special terms is shown in italics.
Illustrations Illustrations appear in this manual to clarify text. It is important for you to be
Electronic manual
conventions
Preface
10
aware that these illustrations are examples only and do not necessarily represent
your actual system configuration, test application, or software.
This manual is available as an electronic document in the Portable Document
File (PDF) format. It can be viewed on any computer that has Adobe Acrobat
Reader installed.
Series 609 Alignment Fixture Product Information
Documentation Conventions
Hypertext links The electronic document has many hypertext links displayed in a blue font. All
blue words in the body text, along with all contents entries and index page
numbers, are hypertext links. When you click a hypertext link, the application
jumps to the corresponding topic.
Series 609 Alignment Fixture Product Information Preface
11
Documentation Conventions
12
Preface
Series 609 Alignment Fixture Product Information
Introduction
C 0
A 0
Force Capacity
Contents Misalignment 15
The MTS Series 609 Alignment Fixture improves alignment between the upper
and lower grips of your load unit. Improving alignment reduces bending strains
in your specimen, which produces more accurate test results. This section
discusses the consequences of having misaligned grips and the two types of
adjustments that can compensate for misalignment problems:
• One set of adjustments compensates for concentric misalignment.
• One set of adjustments compensates for angular misalignment.
In a typical installation, the Series 609 Alignment Fixture is installed between the
force transducer and crosshead.
About Concentric Misalignment 15
About Angular Misalignment 17
Model 609 Alignment Fixture
Series 609 Alignment Fixture Product Information Introduction
13
What you need to
know
MTS Systems Corporation assumes that you know how to use your controller.
See the appropriate manual for information about performing any controllerrelated step in the procedures in this manual. You are expected to know how to do
the following procedures:
• Turn hydraulic pressure on and off.
• Select a control mode.
• Manually adjust the actuator position.
• Install a specimen.
• Define a simple test.
• Run a test.
Related products The Series 609 Alignment Fixture is related to other products. See the following
product information manuals for product-specific information and procedures.
• Your load unit manual has information about installing the force transducer.
• Your grip manual has information about installing the grips.
• An option for the alignment fixture is an alignment software package which
is used with the fixture. See the Using 709 Easy Alignment manual.
14
Introduction
Series 609 Alignment Fixture Product Information
Misalignment
Mounting Surface
Mounting Surface
Equal Strain Equal Strain
Loading Axis
Loading Axis
Misalignment
In uniaxial testing, perfectly aligned grips produce uniform axial tensile strains in
a specimen. For grips to be perfectly aligned, their loading axes must be
concentric.
Perfectly Aligned Grips Produce Uniform Axial Strains
Misalignment between the grips produces nonuniform axial strains in a
specimen. Some areas will have higher than average strains; other areas lower
than average strains. Bending strain is the difference between the average strain
and areas with higher or lower than average strains.
Many ASTM procedures limit maximum bending strains because they cause
specimens to exhibit much lower strengths than if all axial strains were uniform.
The alignment fixture lets you reduce bending strains by improving concentric
and angular alignment between the upper and lower grips.
Grips can have concentric and angular misalignments. Both can occur together
and have a combined effect on the bending strains that appear in the specimen.
About Concentric Misalignment
Concentric misalignment shifts the vertical axes of the grips laterally away from
each other. This puts an “S” shaped bend in the specimen.
A specimen with an “S” bend has a zero bending strain in the middle of its gage
section. It has higher than average bending strains at the top and bottom of its
Series 609 Alignment Fixture Product Information Introduction
15
Adjust Concentric Alignment
Higher Than Average Strain
Lower Than Average Strain
gage section. These higher strains are on opposite sides. It also has lower than
average bending strains at the top and bottom of its gage section, opposite the
higher strains.
Actual strain readings vary with the amount of tensile load applied to the
specimen. With zero or low tensile force applied to the specimen, tensile strain
readings can be opposite compressive strain readings. Under higher tensile force,
high tensile readings can be opposite lower tensile readings.
Concentric Misalignment Produces an “S” Bend
Adjust Concentric Alignment
Turning the four lower adjustment screws moves the concentricity collar. Moving
the collar laterally shifts the upper grip’s position. This aligns the grips’
centerlines, improving their concentric alignment.
The effect of improved concentricity on a specimen is to reduce its “S” bend and
the strains that go with this bend.
As “S” bend strains fade into the background, “C” bend strains come to the
foreground. (Remember that concentric and angular misalignment can occur
together, putting “S” and “C” bends into the same specimen.)
For many test procedures, removing the “S” bend alone may be enough to get
your bending strains within specifications.
Introduction
16
Series 609 Alignment Fixture Product Information
About Angular Misalignment
Concentricity Collar
Concentricity Adjustment Screws
Before and After
Concentric
Adjustment
Misalignment
Improving Concentric Alignment
About Angular Misalignment
Angular misalignment angles the upper grip’s loading axis away from the lower
grip’s loading axis. This misalignment puts a “C”-shaped bend in the specimen.
A specimen with a “C” bend has a side with higher than average strains and a
side opposite with lower than average strains. The bending strain is uniform over
the entire gage section.
Again, actual strain readings vary with the amount of tensile load applied to the
specimen.
With zero or low tensile force applied to the specimen, you can have tensile
readings on one side of the specimen and compressive strain readings on the
other side of the specimen.
Under higher tensile force, you can have higher tensile readings on one side of
the specimen and lower tensile readings on the other side of the specimen.
Series 609 Alignment Fixture Product Information Introduction
17
Adjust Angular Alignment
+ +
+ +
+ +
Angular Misalignment Produces a “C” Bend
Adjust Angular Alignment
Turning the four upper adjustment screws against the angularity collar moves the
housing. The mating surfaces of the angularity collar and housing are spherical.
This tilts the housing as it moves. This tilt gets the grips’ faces parallel,
improving their angular alignment.
Improved angularity reduces the specimen’s “C” bend and the strains that go with
this bend.
Removing the “C” bend can create another “S” bend which may need to be
reduced.
You may have to go back and forth between reducing the “S” bend and reducing
the “C” bend to get the bending strain within specifications.
18
Introduction
Series 609 Alignment Fixture Product Information
Adjust Angular Alignment
Housing
Angularity Collar
Angularity Adjustment Screws
Equal
Strain
Equal
Strain
Before and After Angular Adjustment
Misalignment
Improving Angular Alignment
Series 609 Alignment Fixture Product Information Introduction
19
Adjust Angular Alignment
20
Introduction
Series 609 Alignment Fixture Product Information
Safety Information
Serial No.
Rev.
Model No.
Part No.
PN 491909-01
PN 491906-01
MTS Systems Corporation
14000 Technology Drive
Eden Prairie, MN USA 55344
609 Alignment Fixture
Force Capacity:
100 kN / 22 kip
Model No.
Part No.
Serial No.
Rev.
Hazard Placard Placement
Hazard placards contain specific safety information and are affixed directly to the
system so they are plainly visible.
Each placard describes a system-related hazard. When possible, international
symbols (icons) are used to graphically indicate the type of hazard and the
placard label indicates its severity. In some instances, the placard may contain
text that describes the hazard, the potential result if the hazard is ignored, and
general instructions about how to avoid the hazard.
The following labels are typically located on the alignment fixture.
L
ABEL DESCRIPTION
Alignment Fixture ID label.
Hazard Placard Placement
Part # 049-190-901
Contains the following information:
• Model number
• Part number
• Serial Number
• Revision
Part # 049-190-601
Alternate ID label.
Contains the following information:
• Model number
• Part number
• Serial Number
• Revision
Series 609 Alignment Fixture Product Information Safety Information
21
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