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Example of use for DURO-N1 (warm forging)

Example of use for DURO-N1 (warm forging)

High temperature strength is effective! Heat check and wear suppression at the tip R section.

The "DURO Series" includes mold steels that consist of high-speed steel, matrix high-speed steel, and hot work die steel, with a total of 8 steel types in the lineup. Here we introduce an example of use for the high toughness type hot work die steel "DURO-N1." 【Example of Use】 4-stage finishing forming punch ■ Workpiece: Bearing (SUJ2) at 750–800℃ ■ Material Type Used: DURO-N1 <Conventional Material Type: Modified SKD61 (51HRC), lifespan due to heat checks> ■ Hardness: 51HRC ■ Lifespan (Number of Shots): 2 times (heat check) ◎ Suppresses heat checks and wear in the tip R area ◎ The high-temperature strength of DURO-N1 is effective *For more details, please refer to the PDF document or feel free to contact us.

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Example of DURO-F1 usage (Half-blanking)

Example of DURO-F1 usage (Half-blanking)

High toughness is effective! Suppresses chipping of the thin edge.

The "DURO series" includes mold steels that consist of high-speed steel, matrix high-speed steel, and hot work die steel, with a total of 8 steel types in the lineup. Here we introduce an example of use for the high toughness type matrix high-speed steel "DURO-F1." 【Example of Use】 Main Punch ■ Workpiece: Automotive Parts ■ Material Type Used: DURO-F1 ＜Conventional Material Type: Matrix High-Speed Steel (63HRC), lifespan affected by chipping＞ ■ Hardness: 57HRC ■ Lifespan (Number of Shots): 5 times (chipping) ◎ Suppression of chipping at the thin edge ◎ The high toughness of DURO-F1 is effective *For more details, please refer to the PDF document or feel free to contact us.

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To suppress heat checks and cracks on the molded surface.

To suppress heat checks and cracks on the molded surface.

Intermediates and carbides that are small and few in number are effective clean materials!

To suppress heat checks and cracks on the molding surface, it is necessary to control the decrease in hardness due to temperature rise and the heat checks caused by thermal fatigue. To mitigate the decrease in hardness due to temperature rise, materials with high softening resistance characteristics are effective, as well as those containing carbides that are difficult to agglomerate. "DURO-F3, F1, FZ, N1" have higher heat resistance compared to general-purpose hot work die steel SKD61, making them suitable for suppressing heat checks and cracks on the molding surface. 【Suppressing the decrease in hardness due to temperature rise】 ■ High softening resistance characteristics are effective ■ Materials containing carbides that are difficult to agglomerate are effective *For more details, please refer to the PDF document or feel free to contact us.

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Example of use of DURO-N1 (hot die forging)

Example of use of DURO-N1 (hot die forging)

High temperature strength is effective! Reduces heat checks and wear on the molded surface.

The "DURO series" includes mold steels that consist of high-speed steel, matrix high-speed steel, and hot work die steel, with a total lineup of 8 steel types. Here are examples of the high toughness type hot work die steel "DURO-N1." 【Usage Example】Lower Die ■Workpiece: Automotive Engine Valve (SUH35) ■Material Type Used: DURO-N1 ＜Conventional Material Type: SKD61 (53HRC, gas nitriding), lifespan due to heat checking＞ ■Hardness: 55HRC ■Surface Treatment: Gas Nitriding ■Lifespan (Number of Shots): 50% increase (heat checking, wear) ◎ Suppresses heat checking and wear on the forming surface ◎ The high-temperature strength of DURO-N1 is effective *For more details, please refer to the PDF document or feel free to contact us.

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Example of DURO-FZ usage (Warm Forging 1)

Example of DURO-FZ usage (Warm Forging 1)

High toughness is effective! The number of shots is doubled.

The "DURO series" includes mold steel that consists of high-speed steel, matrix high-speed steel, and hot work die steel, offering a total of 8 types of steel. Here we introduce an example of the high toughness type matrix high-speed steel "DURO-FZ." 【Example of Use】 Forming Die ■ Workpiece: Scroll for car air conditioning (Al alloy, 420℃) ■ Lifespan Factor: Cracks in the stepped part of the forming surface ■ Material Type Used: DURO-FZ <Conventional Material Type: Matrix High-Speed Steel (57HRC, nitrided + lapped), lifespan affected by cracks> ■ Hardness: 57HRC ■ Surface Treatment: Nitriding + Lapping ■ Lifespan (Number of Shots): 2 times (cracks) ◎ The high toughness of DURO-FZ is effective. *For more details, please refer to the PDF document or feel free to contact us.

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Examples of DURO-FZ usage (Warm Forging 2)

Examples of DURO-FZ usage (Warm Forging 2)

Effective heat check resistance! The number of shots is also good.

The "DURO series" includes mold steels that consist of high-speed steel, matrix high-speed steel, and hot work die steel, with a total of 8 steel types in the lineup. Here, we introduce an example of use for the high toughness type matrix high-speed steel "DURO-FZ." 【Example of Use】#3 Punch ■Workpiece: CVJ Outer Race ■Lifetime Factors: Heat softening and heat checks on the punch tip surface ■Material Type Used: DURO-FZ <Conventional Material Type: Matrix High-Speed Steel (59HRC), Lifetime affected by heat checks> ■Hardness: 58HRC ■Surface Treatment: None ■Lifetime (Number of Shots): Good (heat checks) ◎ The heat check resistance of DURO-FZ is effective. *For more details, please refer to the PDF document or feel free to contact us.

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Example of DURO-F1 usage (Hot Forging 2)

Example of DURO-F1 usage (Hot Forging 2)

Toughness is effective! It suppresses heat checks on the molded surface and cracks from the water cooling holes.

The "DURO series" includes mold steel that consists of high-speed steel, matrix high-speed steel, and hot work die steel, with a total of 8 types of steel in the lineup. Here we introduce an example of use for the high toughness type matrix high-speed steel "DURO-F1." 【Example of Use】 Knockout Punch ■ Workpiece: Bearing ■ Material Type Used: DURO-F1 <Conventional Material Type: Matrix High-Speed Steel (58HRC), lifespan affected by water cooling hole cracking> ■ Hardness: 56HRC ■ Lifespan (Number of Shots): More than double (water cooling hole cracking) ◎ Suppresses heat checks on the forming surface and cracking from water cooling holes ◎ The toughness of DURO-F1 is effective *For more details, please refer to the PDF document or feel free to contact us.

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Quick-cut type hot work die steel 'DH2F'

Quick-cut type hot work die steel 'DH2F'

By applying surface treatment, wear resistance and corrosion resistance are further enhanced! This allows for a reduction in mold manufacturing time and costs.

"DH2F" is a type of hot work die steel that has been improved from SKD61 and tempered to a level of 40HRC, designed for easy cutting. It is effective for various applications, including plastic molds and die-casting molds. It has good heat check resistance and melt loss resistance. It is already tempered to 37-41HRC, eliminating the need for heat treatment, making it suitable for the production of complex and precise molds and parts that are sensitive to deformation. Additionally, it has excellent machinability, making cutting and mold engraving easy. Manufacturer: Daido Steel Co., Ltd. 【Features】 - Tempered to 37-41HRC (surface hardness) and does not require heat treatment, making it suitable for the production of complex and precise molds and parts that are sensitive to deformation. - Excellent machinability allows for easy cutting and mold engraving. - Reduces mold manufacturing time and lowers costs. - Good heat check resistance and melt loss resistance. - Surface treatment can further enhance wear resistance and corrosion resistance. *For more details, please refer to the PDF document or feel free to contact us.

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