Metric Thread Rolling Screws

Abstract Copper Alloy No. C34200 contains nominally 2% lead and has a machinability rating approaching that of Free-Cutting Brass. It is noted for its excellent thread-rolling and knurling properties. It is used for many screw-machine applications and it has good resistance to corrosion in many environments. Its many applications include channel plate, gears, wheels and components for clocks and watches. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-476. Producer or source: Brass mills.

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MUELLER ALLOY 3530

Alloy Digest ◽

10.31399/asm.ad.cu0398 ◽

1980 ◽

Vol 29 (7) ◽

Keyword(s):

Corrosion Resistance ◽

Physical Properties ◽

Tensile Properties ◽

Heat Treating ◽

Thread Rolling

Abstract MUELLER Alloy 3530 (formerly MBCo. Alloy 254) is a high-leaded brass noted for its excellent thread-rolling and knurling properties; it has a machinability rating approaching that of free-cutting brass. Typical applications include adapters, gears and valve stems. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-398. Producer or source: Mueller Brass Company.

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RED STAR TUNGSTEN

Alloy Digest ◽

10.31399/asm.ad.ts0173 ◽

1965 ◽

Vol 14 (12) ◽

Keyword(s):

Physical Properties ◽

Tensile Properties ◽

Cutting Tools ◽

High Hardness ◽

Heat Treating ◽

High Carbon ◽

Steel Company ◽

Vanadium Alloys ◽

Alloy Tool ◽

Thread Rolling

Abstract Red Star Tungsten is a high-carbon low-alloy tool steel having high hardness, good toughness, and keen cutting edge. It is recommended for cutting tools, thread rolling dies, paper knives, etc. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as deformation. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-173. Producer or source: Vanadium Alloys Steel Company.

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Study on a New Forming Method—Thread Rolling by Crystal Plasticity Finite Element Simulation

Metals ◽

10.3390/met11030503 ◽

2021 ◽

Vol 11 (3) ◽

pp. 503

Author(s):

Yuheng Zhang ◽

Zhiqing Hu ◽

Liming Guo

Keyword(s):

Finite Element ◽

Crystal Plasticity ◽

Strain Curve ◽

Forming Process ◽

Crystal Plasticity Finite Element ◽

Pole Figures ◽

Grain Orientations ◽

Thread Rolling ◽

Polycrystalline Model ◽

High Consistency

In order to study a new thread rolling forming process from a microscopic perspective, a polycrystalline model was established, based on the crystal plasticity finite element method (CPFEM) and Voronoi polyhedron theory. The fluidity of metals was studied to explain the reason for the concave center. The simulation results show that the strain curve of the representative element can more truly reflect the deformation behavior of the material. The grain orientations after deformation are distributed near the initial orientation. The evolution of each slip system is determined by the initial grain orientations and grain locations. The pole figures obtained from the experiment show high consistency with the pole figures obtained by simulation, which verifies the accuracy of the texture prediction by CPFEM. The experimental results show that thread rolling is more uniform in deformation than ordinary rolling.

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