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This document outlines the specifications for SM 490 grade A rolled steel, including its chemical composition, mechanical properties, and applicable thicknesses. The steel has a carbon content of 0.20% or less for thicknesses up to 50mm, and 0.22% or less for thicker plates from 50mm to 200mm. It must have yield strengths between 295-325MPa and tensile strengths between 490-610MPa depending on thickness, with an elongation of 22% or higher. This grade of steel plate, strip, section or flat is specified for welded structures and applicable for thicknesses up to 200mm.
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Eurobalt Engineering manufactures sintered metal parts using high quality metal powders and alloying elements to achieve the required properties for finished parts. They can produce parts that are completely impermeable, with enhanced hardness, or customized to specific needs, in a range of materials like bronze, brass, steel, and stainless steel, with dimensions between 10x10x10 mm and 100x100x70 mm, tolerances of ±0.05 mm, and weights from 0.005-1.5 kg.
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The goal was to achieve a flatness of 15 microns over a 100x100mm area when finish milling cylinder heads. Initially, using a cutter with 30 pockets and 20 inserts resulted in 100% spindle load, chattering, and a flatness of 35 microns. Reducing the number of inserts to 20 distributed the load, reducing chattering and achieving a flatness of 16 microns over 120 jobs. The key was innovatively reducing the tool weight and cutting loads through fewer inserts to consistently meet quality parameters under machine and process constraints.
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Experimental and Microstructural Analysis of TIG and MIG Welding on Dissimila...
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Should you have any questions, please do not hesitate to contact me.
Phone: 0086-21-20236178 008613917147829
E-mail: sales@clirik.com
http://www.clirikchina.com
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1) The document summarizes a case study for forging a part made of C45 steel using finite element analysis to simulate the forging process.
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Shanghai Clirik Machinery Co., LTD
Should you have any questions, please do not hesitate to contact me.
Phone: 0086-21-20236178 008613917147829
E-mail: sales@clirik.com
http://www.clirikchina.com
http://www.limestonegrindingmill.in
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Forging is a metal forming process commonly used in industry. Forging process is strongly
affected by the process parameters. In a progressive press forging process, an initial block of metal
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the initial billet is crucial in achieving the desired characteristics in the final forged part. The
metallurgical property as well as the geometry of the final product are strongly dependent on the shape
of initial work piece as well as on the perform shapes at each of the subsequent forming stages. The
major issue, which restricts imparting large deformation to the billet are the tensile stress, which later
results in cracking. Bulge is also undesirable from near net shape manufacturing point of view, as it
will require secondary processing like trimming Traditionally, an experienced designer uses his or her
expertise and design data handbooks for optimizing the initial billet shape. Design of the optimum
preform for near net shape forging is a crucial step in the design of many forging products In this study,
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varying geometrical and processing parameters.It is shown that preform map offers a powerful tool for
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The document summarizes a thesis submitted for a Master's degree in Production Engineering. It investigates the friction drilling process through finite element modeling, experimental testing, and analysis of results. The study aims to introduce friction drilling to Egyptian industries by developing low-cost tooling, optimizing process parameters, and evaluating their effects on hole quality, material microstructure, and hardness. Key aspects examined include tool design, experimental setup and methodology, finite element modeling, microstructural analysis, and the influence of rotational speed, feed rate and workpiece material on forces, torque and hole quality. The results provide insight into friction drilling of aluminum, steel and stainless steel and validation of the finite element model.
thesis of friction drilling..
Friction drilling is a nontraditional hole-making method that uses heat generated from friction between a rotating conical tool and workpiece to soften and displace material to form a hole. The process involves 5 steps where the tool initially indents the workpiece, generates heat to soften the material, then pushes softened material aside to penetrate and form a bushing in the hole. Friction drilling can be used to attach components in sheet metal and produces a bushing 2-3 times thicker than the original workpiece. Research on friction drilling is limited but shows it has advantages over traditional drilling in quick processing and minimal material loss or waste.
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Friction drilling is a non-traditional hole making method that uses the heat generated from friction between a rotating conical tool and work piece to soften and penetrate the work material and generated a hole. Friction drilling is also called as thermal drilling, flow drilling, form drilling or friction stir drilling. High temperature and strain in friction drilling material properties and microstructure. The work piece enable softening, deformation and displacement of work material and
creates a bushing surrounding the hole without generating chip or waste material.
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This document presents an experimental investigation of the mechanical properties of friction stir welded aluminum alloy Al 6061 joints considering different friction stir welding parameters. Specifically, it examines the effects of tool shape (taper or threaded), welding speed, and feed rate on the tensile strength, impact toughness, and microhardness of the welded joints. Experiments were conducted according to a Taguchi L8 orthogonal array design of experiments. Results indicated that welding speed had the greatest influence on tensile strength, feed rate most influenced impact toughness and microhardness, and the optimal parameters were a taper tool, 600 RPM welding speed, and 40 mm/min feed rate. These parameters produced joints with maximum mechanical property strengths.
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This document discusses buckling of punches used in press tools. It defines buckling as the failure of a structural component under compression when it is thin or longer than its width. Punches can fail due to buckling if the compression stresses during press tool operation are not properly considered in design. A formula is provided to calculate the maximum force a punch can withstand before buckling based on its material properties, length, and moment of inertia. Two examples are included to demonstrate using the formula to determine if a punch design is suitable and to find the minimum punch diameter needed.
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2. Cutting temperatures can reach up to 6000C at the tool-chip interface and have a controlling influence on tool wear and friction.
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This document discusses quality control, quality assurance, and quality improvement concepts. It provides examples of quality control and quality assurance activities in manufacturing, such as inspections, audits, and process documentation. Quality control focuses on inspection and testing to find defects, while quality assurance aims to prevent defects by improving processes. Quality improvement is about continuously studying processes to identify and implement solutions to problems. The goal is to create systems that prevent errors from occurring.
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