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Copyright information Trademark information © 1997–2002, 2008 MTS Systems Corporation. All rights reserved. MTS and Advantage are registered trademarks of MTS Systems Corporation within the United States. These trademarks may be protected in other countries. Nikal is a registered trademark of DuPont Company.
Contents Technical Support 5 How to Get Technical Support Before You Contact MTS 5 5 If You Contact MTS by Phone 7 Problem Submittal Form in MTS Manuals 8 Preface 9 Before You Begin Conventions 9 10 Documentation Conventions 10 Introduction 13 MTS Advantage Wedge Action Grip Functional Description Grip Environment 15 16 MTS Advantage Wedge Action Grips Specifications MTS Advantage Wedge Action Grips Dimensions 17 18 MTS Advantage Wedge Action Grips—Flat Specimen Wedges 19 MTS Advantage We
Installation 23 About Grip Installation Install the Grips 23 24 Operation 25 Changing Wedges 25 Installing a Specimen 27 Maintenance 31 4 MTS Advantage™ Wedge Action Grips
Technical Support How to Get Technical Support Start with your manuals 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. Technical support methods MTS web site www.mts.
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 Know information from prior technical assistance Identify the problem Know relevant computer information 6 Technical Support If you have contacted MTS about this problem before, we can recall your file.
Know relevant software information For software application problems, have the following information available: • 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.
Write down relevant information After you call Prepare yourself in case we need to call you back: • 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. MTS logs and tracks all calls to ensure that you receive assistance and that action is taken regarding your problem or request.
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.
Conventions 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.
Conventions Illustrations Electronic manual conventions Hypertext links Manual Name Illustrations appear in this manual to clarify text. It is important for you to be 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.
Conventions 12 Preface Manual Name
Introduction The MTS Advantage Wedge Action Grips hold a test specimen in a load unit for static tension testing. The grips can accommodate flat or round specimens.
MTS Advantage Wedge Action Grips—Round Specimen Wedges 20 Mts Advantage Wedge Grips What you need to know 14 Introduction MTS Systems Corporation assumes that you know how to use your controller. See the appropriate manual for information about performing any controllerrelated step in this manual’s procedures. You are expected to know how to: • Turn on power (electrical or hydraulic) to the load frame (electromechanical) or load unit (servohydraulic).
MTS Advantage Wedge Action Grip Functional Description The MTS Advantage Wedge Action Grips are designed for static tension testing. The grips are mounted in a load frame (also called a load unit) by attaching the male mounting pin to a female mounting adapter and securing them with a mounting dowel. A specimen can be installed either from the side of the grip or from the top of the grip. The grip handles are turned to apply an initial gripping force.
Grip Environment The grips can be used at temperatures from -129 °C to +315 °C (-200 °F to +600 °F). For testing at temperatures other than ambient conditions, the grips can be mounted inside an environmental chamber. When using the grips above ambient temperatures, the maximum tensile load must be reduced according to the figure below. Also, if the grips are being used above +260 °C (+500 °F), the stainless steel springs should be removed or they might have to be replaced periodically.
MTS Advantage Wedge Action Grips Specifications Grip Ratings MODEL MONOTONIC TENSION CAPACITY WEIGHT (PER GRIP) MAXIMUM PRELOAD TORQUE 10 kN 10 kN (2 kip) 4.5 kg (10 lb) 11.3 N·m (100 in·lb) 30 kN 30 kN (6.7 kip) 5.5 kg (12 lb) 11.3 N·m (100 in·lb) 50 kN 50 kN (11 kip) 7 kg (15 lb) 15 N·m (130 in·lb) 100 kN 100 kN (22 kip) 15 kg (33 lb) 45 N·m (450 in·lb) 150 kN 150 kN (33 kip) 19.6 kg (43 lb) 68 N·m (600 in·lb) 300 kN 300 kN (67 kip) 53.
MTS Advantage Wedge Action Grips Dimensions The dimensions shown in the figure correspond with the grip dimensions in the following table. D A C B Grip Dimensions MODEL A B C D* 10 kN 172 mm (6.8 in) 132 mm (5.2 in) 62 mm (2.4 in) 1-1/4 in 30 kN 206 mm (8.1 in) 114 mm (4.4 in) 64 mm (2.5 in) 1-1/4 in 50 kN 210 mm (8.3 in) 147 mm (5.8 in) 63 mm (2.4 in) 1-1/4 in 100 kN 215 mm (8.5 in) 192 mm (7.5 in) 93 mm (3.7 in) 1-1/4 in 150 kN 259 mm (10.2 in) 193 mm (7.6 in) 102 mm (4.
MTS Advantage Wedge Action Grips—Flat Specimen Wedges The flat wedges are available for two force ranges. Flat Specimen T 10 kN to 50 kN (6 kip to 11 kip) Flat Specimen Wedges SPECIMEN THICKNESS (T) WEDGE WIDTH MM IN MM IN 0.0 to 7.9 0.00 to 0.31 25.4 1.00 053 140 801 4.06 to 10.92 0.23 to 0.52 25.4 1.00 053 140 802 * WEDGE SET PART NUMBER* The wedge set assembly consists of a matched set of four wedges.
MTS Advantage Wedge Action Grips—Round Specimen Wedges The vee-notched wedges for round specimens are available for two force ranges. Round Specimen D 10 kN to 50 kN (6 kip to 11 kip) Vee-Notched Wedges SPECIMEN DIAMETER (D) WEDGE SET PART NUMBER* MM IN 3.0 to 7.9 Side Installation 3.0 to 7.9 Top Installation 0.12 to 0.31 Side Installation 0.12 to 0.31 Top Installation 053-140-803 7.0 to 9.5 Side Installation 7.0 to 12.7 Top Installation 0.27 to 0.37 Side Installation 0.27 to 0.
Safety Information 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.
Safety Information Manual Name
Installation This section describes how to install the MTS Advantage Wedge Grips in a load frame. About Grip Installation WARNING Grip Installation is inherently dangerous because it occurs within the crush zone of the force train. During installation (electrical or servohydraulic) power is applied to the system because crosshead or actuator movement is required. Serious injury and damage to the equipment can occur. Take every precaution to avoid unexpected crosshead or actuator movement.
Servohydraulic adapter If you are installing the grips on a servohydraulic load unit, you must install a load unit mounting adapter on the actuator and on the force transducer. Servohydraulic installations require the attachment kit (MTS part number 051880-3xx) for the appropriate parts. Install the Grips 1. Turn on the power to the load frame. 2. Adjust the crosshead position as necessary to allow adequate room to install the grips. 3. Turn the load frame power off. 4.
Operation This section describes how to operate the MTSAdvantage Wedge Action Grips. Contents Changing Wedges 25 Installing a Specimen 27 Changing Wedges Two standard types of wedges are available for the grips: flat wedges for flat specimens and vee-notched wedges for round specimens. Perform the following procedure to replace one type of wedge with the other. Note Specimen Guide Each wedge is labeled with the wedge part number and manufacturing date code.
WARNING The wedge springs can become dislodged and fly out of the grip assembly. The wedge spring can attain a force that can hurt you. Ensure that the retaining clip is installed on the spring anchor post. 2. The lower end of the wedge spring is secured to the spring post with a retaining clip (star washer). If the retaining clip is not present, install one before disconnecting the spring from the wedge. Disconnect the springs that are attached to each wedge. 3.
Installing a Specimen The following procedure describes how to install a specimen in the MTS Advantage Wedge Grips. This procedure assumes a set of wedges has been properly installed. CAUTION The contact area between the grip face and specimen should be as large as possible. A small contact area between the grip face and specimen can cause premature wear to the grip face surface.
CAUTION Improper specimen installation can damage the wedges. To prevent damage to the grips, follow the installation procedure. Do not install specimens with hardness of Rc 52 or greater. 6 mm (0.25 in) Maximum Specimen 6 mm (0.25 in) Maximum Specimen Installation 1. Apply power to the load frame or load unit.
2. Open the upper and lower grips. CAUTION Specimen slippage during the test can damage the grips. Specimen slippage typically occurs when: • Insufficient grip pressure is used to securely grip the specimen. • Grip faces or wedges with rounded or flattened serrations are used. • The specimen is harder than the wedge or face material. Do not exceed the maximum pressure rating of the grip. Increasing the pressure setting to hold round specimens can reduce the life of the vee-notched wedges.
Operation Manual Name
Maintenance After approximately 500 uses (or weekly, whichever comes first), the wedges of the grip should be removed and an anti-seizing compound applied to the edges of the wedge which contact the wedge chamber. The grip wedges should also be lubricated if the grips have been in extended storage. Perform the following steps to lubricate the wedges. Material required is Nikal lubricant (MTS part number 011-354-402). 1. Remove the wedges from the grip body. 2.
Maintenance Manual Name
m MTS Systems Corporation 14000 Technology Drive Eden Prairie, Minnesota 55344-2290 USA Toll Free Phone: 800-328-2255 (within the U.S. or Canada) Phone: 952-937-4000 (outside the U.S. or Canada) Fax: 952-937-4515 E-mail: info@mts.com Internet: www.mts.
