Computerized Tensile Testing Machine -C SERIES
Computerized tensile testing machine provide precise and repeatable results, allowing for accurate characterization of material properties. They are commonly used in industries such as manufacturing, construction, research and development, and quality control to ensure material compliance, assess product quality, and aid in material selection and design.
These models are suitable for testing metals and iron, Plastics, Rubber, Ceramics, Fabrics, Composites, Cables and wires. Load is measured through a strain gauge based Load Cell and elongation is through rotary encoder. Depending upon the customers requirement a suitable type of grips are available. Extra Load cell can be offered suitable for low load samples.
Tensile testing machines include safety features to protect operators and prevent damage to the machine. These features may include emergency stop buttons, overload protection, and software-controlled limits for maximum force or displacement.
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Types of Universal Testing Machines and various test specimens performed under it.
Universal testing refers to the testing of materials to determine their mechanical, physical, or chemical properties. It involves subjecting the materials to various forces, stresses, or conditions to evaluate their performance. It is important to note that the specific steps and procedures for universal testing may vary depending on the material, property being tested, and the test method being used. Following the appropriate testing standards and guidelines, as well as ensuring proper equipment calibration and specimen preparation, is crucial to obtain accurate and meaningful results. Determine the specific test method or standard that corresponds to the property you want to measure. There are various testing methods available for different material properties, such as tensile testing, compression testing, flexural testing, hardness testing, impact testing, etc. Choose the appropriate method based on your material and property of interest. Prepare specimens or samples according to the requirements of the testing method. The size, shape, and preparation techniques will depend on the specific test being performed. Follow the relevant standards or guidelines to ensure consistency and accuracy. Set up the testing equipment and instruments. This may involve positioning the specimen in the testing machine or apparatus, attaching necessary fixtures or grips, and configuring the testing parameters, such as load or displacement rates, temperature, humidity, or other environmental conditions as required by the specific test. Calibrate the testing equipment to ensure accurate and reliable measurements. This involves verifying the accuracy and precision of the testing machine, load cells, extensometers, or other measuring devices used in the test. Follow the manufacturer’s instructions or relevant standards for calibration procedures. Start the test by applying the appropriate forces, stresses, or conditions to the specimen. This may involve stretching, compressing, bending, impacting, or subjecting the material to other specific conditions. The testing machine or apparatus will record the data, such as load, displacement, strain, or time, depending on the test being performed. Collect the data generated during the test. This typically includes load or force values, displacement or deformation measurements, and other relevant parameters. Analyze the data using appropriate software or calculations to determine the material properties of interest, such as tensile strength, yield strength, modulus of elasticity, hardness, impact resistance, etc. Document the test results in a clear and organized manner. Prepare a test report that includes relevant information about the specimen, testing conditions, test results, and any other observations. Interpret the results based on established standards, specifications, or requirements. Compare the obtained values with relevant reference values or industry standards to evaluate the material’s performance.
A tensile test measures the strength and behavior of a material under tension as it proposed to determine properties such as ultimate tensile strength, yield strength, elongation, and modulus of elasticity. A compression test determines the strength and behavior of a material under compressive forces. It measures properties such as compressive strength, elastic modulus, and deformation characteristics and a flexural or bending test assesses a material’s resistance to bending or flexing. It determines properties like flexural strength, modulus of rupture, and modulus of elasticity in bending. A shear test evaluates a material’s strength and behavior under shear forces. It measures properties such as shear strength and shear modulus, a tear strength test determines a material’s resistance to tearing or propagation of a pre-cut slit. It is commonly used for elastomers, textiles, and thin films and peel test measures the bond strength between two materials. It assesses the force required to separate an adhesive joint or peel apart two layers. A friction test determines the coefficient of friction between two surfaces in contact. It assesses the resistance to sliding or relative motion. Some universal testing machines include provisions for hardness testing using different methods, such as Rockwell, Brinell, Vickers, or Knoop hardness testing. Universal testing machines equipped with impact fixtures can perform impact tests to evaluate a material’s ability to absorb energy under dynamic loading. Common methods include Charpy and Izod impact tests. Universal testing machines can perform fatigue tests to evaluate a material’s durability under repeated cyclic loading. This helps determine the material’s fatigue strength and fatigue life. A creep test measures a material’s response to a constant load over an extended period. It evaluates the material’s behavior under long-term stress and assesses creep deformation. A relaxation test measures the relaxation or reduction in stress over time for a constant strain. It helps assess a material’s ability to maintain a specified load or stress level. Universal testing machine are capable of performing different types of mechanical tests on materials such as Single Column Universal Testing Machine often used for testing materials with low to moderate strength, such as plastics, rubber, textiles, and thin films. They are suitable for performing tensile, compression, and flexural tests on smaller samples. Dual column UTMs provide increased stability and load capacity compared to single column machines. They are commonly used for testing a wide range of materials, including metals, composites, ceramics, and larger-sized samples. They can perform tensile, compression, flexural, and other tests requiring higher forces and larger specimen sizes. Electromechanical UTMs use an electric motor and mechanical system to apply forces and measure the response of the material being tested. They are suitable for performing various tests, including tensile, compression, flexural, and cyclic fatigue tests.
Electromechanical UTMs are often used in materials testing laboratories and manufacturing industries. Hydraulic UTMs utilize hydraulic power to generate and control forces applied to the specimen. They are capable of performing tests that require high forces, such as tensile, compression, and fracture toughness tests on heavy-duty materials like metals, concrete, and structural components. Hydraulic UTMs are commonly used in construction, aerospace, and automotive industries. Servo-hydraulic UTMs combine hydraulic power with servo-controlled systems to provide precise force and displacement control. They are suitable for performing dynamic and high-cycle fatigue tests, as well as advanced tests like fracture mechanics, impact, and vibration tests. Servo-hydraulic UTMs are commonly used in research institutions, aerospace, and automotive industries. Micro UTMs are designed for testing micro-sized specimens, such as microelectromechanical systems (MEMS), micro-components, and microstructures. They offer high precision and are used in research and development of micro-scale materials and devices. Here are types of tests performed on different materials using a UTM that is
Tensile Test:
Material types: Metals, plastics, rubbers, textiles, composites, etc.
Purpose: Measures the material’s response to tension, determining properties such as tensile strength, yield strength, elongation, modulus of elasticity, and fracture behavior.
Compression Test:
Material types: Metals, plastics, ceramics, concrete, foams, etc.
Purpose: Evaluates the material’s response to compressive forces, determining properties like compressive strength, yield strength, modulus of elasticity, and deformation characteristics.
Flexural Test:
Material types: Plastics, composites, ceramics, wood, etc.
Purpose: Measures the material’s resistance to bending or flexing, determining properties like flexural strength, modulus of rupture, and modulus of elasticity in bending.
Shear Test:
Material types: Metals, composites, adhesives, etc.
Purpose: Evaluates the material’s shear strength and behavior under shear forces, providing insight into its structural integrity and performance.
Impact Test:
Material types: Plastics, metals, composites, rubbers, etc.
Purpose: Assesses the material’s ability to absorb energy under dynamic loading, measuring impact resistance, toughness, and fracture behavior.
Hardness Test:
Material types: Metals, plastics, elastomers, etc.
Purpose: Determines the material’s resistance to indentation or penetration, providing information about its hardness, wear resistance, and strength.
Fatigue Test:
Material types: Metals, composites, polymers, etc.
Purpose: Simulates cyclic loading to evaluate the material’s durability, fatigue strength, and fatigue life under repetitive stress or strain conditions.
Fracture Toughness Test:
Material types: Metals, ceramics, composites, etc.
Purpose: Measures the material’s ability to resist crack propagation, determining its resistance to fracture and providing information for structural integrity assessment.
Peel Test:
Material types: Adhesive joints, laminates, films, coatings, etc.
Purpose: Determines the bond strength between two materials and evaluates the adhesive or bonding performance.
Creep Test:
Material types: Polymers, metals, ceramics, etc.
Purpose: Evaluates the material’s behavior under prolonged stress or constant load over time, measuring creep deformation and determining its creep resistance.
These are some specific tests and methods employed will depend on the material being tested, the desired properties to be measured, and relevant industry standards or specifications.
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Guide To choose the Right Tensile/Compression Strength Testing Machine
Despite the fact that Tensile/Compression strength testing machines are and utilized pretty much in every industry there is still absence of information with regards to buying the right machine. Given the scope of items, the features and the variations in cost getting one can be a bit overwhelming and this becomes especially true for non -standard applications.
One of the inquiries we get posed to by our clients is whether to pick a manually operated machine or motorized one and if motorized is chosen, would it be a good idea for us we pick a machine with Computer Control and inclusive of data acquisition. So, we should check out at this according to a point of view of a spring manufacturer.
There are two elements which go with this choice simpler. The first and most clear one is the price. Manually operated machines are less expensive obviously, then motorized lastly computerized. In any case, in the event that you are taking a heavier spring which are utilized in train bogies or airplanes, then, at that point, motorized ones must be utilized no matter what the budget. Imaging putting a pressure power of 5000 kg on a spring, (for example, the ones utilized under the train bogies) with a hand wheel. Indeed, even with utilization of a geared 3 train it's diligent effort.
Whenever that is chosen, the other element which is significant is the volume of testing. A spring manufacturer can let out a huge number of springs a day. The question then is whether to do batch testing or 100% testing. Batch testing is where you pick a couple of tests from the batch, test them and assuming all are good you say that the entire batch is good. In such cases a manual machine would be satisfactory. However, if one wants to test several thousand springs a day it's smarter to go for a motorized machine and reduce the burden of manual labour on the machine operator.
So, we decided on a manual or motorized machine. Subsequent stage in the development is whether to get a computer-controlled machine. These are machines operated straightforwardly from the computer and give the testing output as a force versus displacement chart. This imagines the way of behaving of the spring constantly. Regularly these software’s also provide a statistical report for all the tests, so min, max, standard deviation etc. and so forth. Are accessible as reports. Any large organizations where the report should be imparted to the higher ups who just need an outline of the production quality, these machines are a good decision. Any new product requiring data for approval must be tested on such machines. In many cases the client request that the manufacturer present the report online or in pdf format to avoid any possibility of manipulation. The best way to avoid from this is to utilize a computerized machine.
In specific cases the product you manufacture dictates the type of machine, there are ASTM, IS norms which settle on the decision for you. Be that as it may, for situations where it’s a non-standard product, we trust this article assists you with choosing what's best for you.
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