Home>Popular Page

United States Steel series and also the selection of work out plans die in 40 years to the initial formation of the united states die of commercial materials:
Conditions of service by the united states will die aluminum mold is torn into three groups, American Society with regard to Metals Committee prospect lists the tool aluminum: cold die aluminum, hot die aluminum and plastic molds aluminum three categories. Included in this, the cold doing work die steel in addition to separation of twelve subclasses, subclasses 9, hot die aluminum, plastic molds aluminum 2 categories. Selection for every subclass in turn depends upon three main elements:
Size and design complexity; been processed materials; durability conditions or design living; the classification regarding cold-working die aluminum; cold-working die aluminum is divided directly into five groups: W collection, O group, An organization, D group, S group; W group mineral water hardening tool steel that is certainly, there are 11 sorts of steel, seven carbon dioxide tool steel, carbon dioxide content from 0.7% to 1.3%; O group that is certainly oil quenched cold-working cease to live steel (commonly generally known as oil steel), 4 sorts of steel, carbon content of 0.85% to 1.55%; An organization that cold air conditioning quenching the metal tool steel, 9 sorts of steel, carbon content from hundreds point five to a couple of 2.25%; D group that is certainly high-carbon high-chromium frosty work die aluminum, there are seven sorts of steel, carbon content of 0.9% to 2.25%; S group that is certainly impact resistant instrument steel, 7 sorts of steel, and carbon content of 0.4% to 0.6%. You will discover high speed aluminum for cold doing work die (HSS group) in addition to ultra high-speed aluminum (SHSS group), Co-based cemented carbide in addition to steel bonded carbide (HA group), powder snow steel and architectural ceramics (PIM group), C W Tool Aluminum (F), special-purpose instrument steel (L group).

Selection of Cold Work Cease to live Steel
Cold Work Cease to live Steel's main series is often a high-hard cold, mainly for requiring higher compressive strength in addition to wear-based mold, solidity above HRC60-62. For any requirements of impact resistance, high toughness in the mold, hardness less than HRC60-62, the main component to A with that S class and also the classes and essentially the most common quenched in addition to tempered steel, early spring steel, hot cease to live or substrate aluminum. For large stamping cease to live, stamping parts for example automotive exterior, the principle use of guaranteed. Life of brief number of simple or zinc-based metal or polymer blends material.
High-speed aluminum and high-speed aluminum in cold mildew is rapidly expanding. Is mainly a top "strength / hardness" ratio. And the solidity of HRC60-70 can make between.
Powder cease to live steel with good wear life, hardness less than HRC60-62, quite a good number of applications, carbon tool steel in the life of 100 000 in the punch or fluffy materials, stamping die is still a certain range of applications.
Distinction of hot perform die steel
U.S. hot cease to live steel divided directly into two categories: sizzling die steel in addition to super-strong alloy heat.

Selection of sizzling work die aluminum
Hot die thanks to work under conditions of temperature, that requirement that products with high heat resistance and energy resistance, in order to be sure the life in the mold to awesome the mold, that mold will glimpse alternately hot in addition to cold cracking, that thermal fatigue breaks, so material Also requires ability in addition to resistance to energy fatigue crack.
Ordered by heat intensity in the main series with regard to selection:
Quenched in addition to tempered low metal tool steel (6G, 6F2, 6F3): Chromium hot perform die steel (H11, H12, H13): Tungsten hot perform die steel (H21, H22).
Non-standard sizzling work tool aluminum: for example, by hot cease to live upsetting hardening form of 6H4. Using H11, H12, H13 are unable to meet the energy resistance there, you can choose 6H1, 6H2.
Whenever asked to cease to live for resistance to heat-based, you can make D2, D4: M2, M4: steel powder. Aluminum bonded carbide, cobalt-based alloy from high temperature wear resistance is quite high, but it has the thermal fatigue opposition (i.e., anti-fatigue bust hot and cold) is actually poor, can not be thermal zap state.
Classification regarding plastic mold aluminum
The United Declares is listed first in the plastic mold instrument steel, special aluminum, the country, mainly represented by P, is actually divided into all 5 categories.
Carburizing cheap mold steel: P1, P2, P3, P4, P5, P6. These kinds of low carbon aluminum, mainly the Country and by that early extrusion molding approach, requires cold cheap, has a higher compression performance, after forming that surface of carburized to improve the surface solidity and long service life. Core is actually low carbon may quench deformation minimal.
Quenched plastic mildew: P20, P21. P20 present in as much plastic mold substantial has become the principle, most used in the pre-hard state.
Carbon alloy tool steel employed in the thermosetting cheap molds. Steel by using H13, and L12 in addition to S7, O1 and A2 are also applied. This school is characterized through:
1, almost all secondary hardening Bruce Bond, 500 to 600 degrees Celsius, that thermal strength is actually good.
2, higher chromium, atmospheric rust better.
3, excellent harden ability, suitable with regard to large modules.
Steel for corrosion opposition demanding plastic mildew, mainly steel, tend to be 420, 414 L, 440, 416.
Steel is the consequence of aging time to receive high performance. You will discover two types regarding low-carbon Ni-A1 P21 ageing steel; other is actually 18Ni managing aluminum. The latter must be used in the aerospace industry's carbon-free higher purity, high durability, and high toughness in the material. For hardware properties, dimensional correctness, finish and rust resistance are challenging the plastic mildew.
Selection of cheap mold steel
Thin-walled cheap box, the production volume of less than 100, 000, the employment of P20, P21 pre-hardened state (HB250-300), corrosive whenever used 414L.
Higher life of ordinary plastic mold, with all the P6 or P20, through carburizing - quenched solidity of HRC54-58; plastic parts is not too large, that available O1, S7. Corrosive moment by 420.
Non-high-temperature thermosetting molding regarding P6, P20 carburizing quenching work with. Corrosion with 420.
High-temperature thermosetting cheap mold with H13 in addition to S7 hardened aluminum or P4. That high chromium in addition to good resistance to tempering temperature oxidation opposition.