CN106392080A - 一种膛线复合钨钢拉刀 - Google Patents

一种膛线复合钨钢拉刀 Download PDF

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CN106392080A
CN106392080A CN201611131588.XA CN201611131588A CN106392080A CN 106392080 A CN106392080 A CN 106392080A CN 201611131588 A CN201611131588 A CN 201611131588A CN 106392080 A CN106392080 A CN 106392080A
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parts
broaching tool
rifling
combined
wolfram steel
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陈世杰
田绍忠
田绍洁
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DDA SHENGJIE VACUUM TECHNIQUES DEVELOP Co Ltd
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DDA SHENGJIE VACUUM TECHNIQUES DEVELOP Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10Sintering only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/05Mixtures of metal powder with non-metallic powder
    • C22C1/051Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C29/00Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/005Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C29/00Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/14Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on borides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001Cutting tools, earth boring or grinding tool other than table ware

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

本发明公开了一种膛线复合钨钢拉刀,由以下重量份原料组成:60~75份硼化钨、20~23份C、10~13份V、0.08~0.1份Al、1~1.5份Mo、1.3~2.5份羟基铁粉、0.8~2.1份二氧化锆、0.2~0.6份酰胺。本发明拉刀材料配方和加工工艺得到的刀具,强度和硬度高、耐磨性好、红硬性好、热膨胀系数小、弹性模量高以及化学稳定性好等一系列优良性能,应用于膛线拉刀上。

Description

一种膛线复合钨钢拉刀
技术领域
本发明涉及一种膛线复合钨钢拉刀。
背景技术
用于拉削的成形刀具。刀具表面上有多排刀齿,各排刀齿的尺寸和形状从切入端至切出端依次增加和变化。当拉刀作拉削运动时,每个刀齿就从工件上切下一定厚度的金属,最终得到所要求的尺寸和形状。拉刀常用于成批和大量生产中加工圆孔、花键孔、键槽、平面和成形表面等,生产率很高。拉刀按加工表面部位的不同,分为内拉刀和外拉刀;按工作时受力方式的不同,分为拉刀和推刀。推刀常用于校准热处理后的型孔。
但由于拉刀材料韧性不够高、硬度低,使用一段时间后,会容易出现局部划伤缺陷时,例如,刀齿刃口有碰伤的缺口;拉刀经过多次刃磨后容屑槽的形状造成不光滑的台阶形,以致使切屑卷曲不顺利而挤坏.刀齿和划伤加工表面等。
发明内容
本发明提供一种膛线复合钨钢拉刀,具有极为优秀的耐磨耗性能及抗冲击性能,切削速度较高,加工材料的硬度越高。由以下重量份原料组成:60~75份硼化钨、20~23份C、10~13份V、0.08~0.1份Al、1~1.5份Mo、1.3~2.5份羟基铁粉、0.8~2.1份二氧化锆、0.2~0.6份酰胺。
进一步地,在上述技术方案中,所述膛线复合钨钢拉刀,由以下重量份原料组成:65~70份硼化钨、21~22份C、11~12份V、0.08份Al、1份Mo、1.3份羟基铁粉、0.8份二氧化锆、0.2份酰胺。
进一步地,在上述技术方案中,所述膛线复合钨钢拉刀,所述酰胺选自RCONH2,R为碳数为3~5的脂肪链。
进一步地,在上述技术方案中,所述膛线复合钨钢拉刀,原料为小于100目的粉末。
本方法提供一种上述膛线复合钨钢拉刀的加工工艺,包括以下步骤:
步骤一、按上述比例称取的各原料,通过球磨机进行湿磨;
步骤二、在-0.3~-0.18Pa真空条件下,将步骤一得到的浆料在150~180℃干燥;
步骤三、将步骤二得到的粉料在机械成型机内挤压成型、固化,固化温度为60~80℃,固化时间为7~8小时;
步骤四、将步骤三中固化后的材料在真空炉中进行烧结,烧结温度950~1010℃,真空度-0.25~-0.30Pa,烧结3~5小时。
本发明拉刀材料配方和加工工艺得到的刀具,强度和硬度高、耐磨性好、红硬性好、热膨胀系数小、弹性模量高以及化学稳定性好等一系列优良性能,应用于膛线拉刀上。
具体实施方式
实施例1
一种膛线复合钨钢拉刀,具有极为优秀的耐磨耗性能及抗冲击性能,切削速度较高,加工材料的硬度越高。由以下重量份原料组成:60份硼化钨、20份C、10份V、0.08份Al、1份Mo、1.3份羟基铁粉、0.8份二氧化锆、0.2份丙酰胺。原料为小于100目的粉末。
上述膛线复合钨钢拉刀的加工工艺,包括以下步骤:
步骤一、按上述比例称取的各原料,通过球磨机进行湿磨;
步骤二、在-0.3Pa真空条件下,将步骤一得到的浆料在150~180℃干燥;
步骤三、将步骤二得到的粉料在机械成型机内挤压成型、固化,固化温度为60~80℃,固化时间为7~8小时;
步骤四、将步骤三中固化后的材料在真空炉中进行烧结,烧结温度950~1010℃,真空度-0.25Pa,烧结3小时。
本发明拉刀材料配方和加工工艺得到的刀具,强度和硬度高、耐磨性好、红硬性好、热膨胀系数小、弹性模量高以及化学稳定性好等一系列优良性能,应用于膛线拉刀上。
实施例2
一种膛线复合钨钢拉刀,具有极为优秀的耐磨耗性能及抗冲击性能,切削速度较高,加工材料的硬度越高。由以下重量份原料组成:75份硼化钨、23份C、13份V、0.1份Al、1.5份Mo、2.5份羟基铁粉、2.1份二氧化锆、0.6份酰胺。
进一步地,在上述技术方案中,所述膛线复合钨钢拉刀,由以下重量份原料组成:65~70份硼化钨、21~22份C、11~12份V、0.08份Al、1份Mo、1.3份羟基铁粉、0.8份二氧化锆、0.2份丙酰胺。原料为小于100目的粉末。
上述膛线复合钨钢拉刀的加工工艺,包括以下步骤:
步骤一、按上述比例称取的各原料,通过球磨机进行湿磨;
步骤二、在-0.3~-0.18Pa真空条件下,将步骤一得到的浆料在150~180℃干燥;
步骤三、将步骤二得到的粉料在机械成型机内挤压成型、固化,固化温度为60~80℃,固化时间为7~8小时;
步骤四、将步骤三中固化后的材料在真空炉中进行烧结,烧结温度950~1010℃,真空度-0.25~-0.30Pa,烧结3~5小时。
本发明拉刀材料配方和加工工艺得到的刀具,强度和硬度高、耐磨性好、红硬性好、热膨胀系数小、弹性模量高以及化学稳定性好等一系列优良性能,应用于膛线拉刀上。

Claims (5)

1.一种膛线复合钨钢拉刀,其特征在于:由以下重量份原料组成:60~75份硼化钨、20~23份C、10~13份V、0.08~0.1份Al、1~1.5份Mo、1.3~2.5份羟基铁粉、0.8~2.1份二氧化锆、0.2~0.6份酰胺。
2.根据权利要求1所述膛线复合钨钢拉刀,其特征在于:由以下重量份原料组成:65~70份硼化钨、21~22份C、11~12份V、0.08份Al、1份Mo、1.3份羟基铁粉、0.8份二氧化锆、0.2份酰胺。
3.根据权利要求1所述膛线复合钨钢拉刀,其特征在于:由以下重量份原料组成:70份硼化钨、22份C、12份V、0.09份Al、0.2份Mo、2份羟基铁粉、1份二氧化锆、0.4份酰胺。
4.根据权利要求1~3任意一项所述膛线复合钨钢拉刀,其特征在于:所述酰胺选自RCONH2,R为碳数为3~5的脂肪链。
5.根据权利要求1~3任意一项所述膛线复合钨钢拉刀,其特征在于:原料为小于100目的粉末。
CN201611131588.XA 2016-12-09 2016-12-09 一种膛线复合钨钢拉刀 Pending CN106392080A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100266788A1 (en) * 2009-04-16 2010-10-21 Niccolls Edwin H Structural Components for Oil, Gas, Exploration, Refining and Petrochemical Applications
CN105142825A (zh) * 2012-09-27 2015-12-09 阿洛梅特公司 形成具有功能梯度材料的新颖组合物的金属或陶瓷制品的方法和包含所述组合物的制品
CN105364076A (zh) * 2015-11-06 2016-03-02 哈尔滨东安利峰刀具有限公司 一种硬质合金可换刀具的制造工艺

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100266788A1 (en) * 2009-04-16 2010-10-21 Niccolls Edwin H Structural Components for Oil, Gas, Exploration, Refining and Petrochemical Applications
CN105142825A (zh) * 2012-09-27 2015-12-09 阿洛梅特公司 形成具有功能梯度材料的新颖组合物的金属或陶瓷制品的方法和包含所述组合物的制品
CN105364076A (zh) * 2015-11-06 2016-03-02 哈尔滨东安利峰刀具有限公司 一种硬质合金可换刀具的制造工艺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈勇志 等: "《机械制造工程技术基础》", 28 February 2015 *

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Application publication date: 20170215