CN104625614A - Method for machining stainless steel deep-hole thin-wall part - Google Patents

Method for machining stainless steel deep-hole thin-wall part Download PDF

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Publication number
CN104625614A
CN104625614A CN201410744263.3A CN201410744263A CN104625614A CN 104625614 A CN104625614 A CN 104625614A CN 201410744263 A CN201410744263 A CN 201410744263A CN 104625614 A CN104625614 A CN 104625614A
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China
Prior art keywords
hole
boring
workpiece
carried
pull
Prior art date
Application number
CN201410744263.3A
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Chinese (zh)
Inventor
陈建秋
Original Assignee
陈建秋
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Application filed by 陈建秋 filed Critical 陈建秋
Priority to CN201410744263.3A priority Critical patent/CN104625614A/en
Publication of CN104625614A publication Critical patent/CN104625614A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

The invention relates to the field of machining, in particular to a method for machining a stainless steel deep-hole thin-wall part. The method comprises the following steps that a proper blank material is selected, annealing treatment is carried out, and the cutting machining performance of the material is improved; rough turning is carried out, wherein working allowance of a blank is removed, and a workpiece inner hole is machined in dedicated equipment through a corresponding deep hole inner ejector drill; heat treatment and quenching are carried out; the appearance of a workpiece is clamped, and the end faces of the workpiece are turned; lead hole turning and chamfering are carried out; pull-boring and pull-hinging are carried out, the number of times of pull-boring and pull-hinging can be determined according to the working allowance, the number is generally two to four, pull-boring is carried out two times on a dedicated deep hole drilling and boring machine according to the characteristic of the part, after pull-boring is carried out once, the inner hole is machined with certain working allowance reserved, the inner hole is machined to the required size finally, and cooling lubricating oil is adopted in the machining process. According to the method, the precision requirement of the workpiece can be guaranteed, quality is stable and reliable, machining difficulty can be reduced, production efficiency can be improved, and the labor intensity of workers can be reduced.

Description

Stainless steel deep hole thin-walled parts processing method
Technical field
The present invention relates to field of machining, be specifically related to stainless steel deep hole thin-walled parts processing method.
Background technology
Deep hole machining is as a kind of strongly professional, machining process that difficulty of processing is large, be widely used in the military industries such as Aeronautics and Astronautics, its processing precision direct influence the performance of product, particularly along with novel high-strength, high hardness material get more and more as difficult-to-machine material application such as titanium alloy, stainless steel, heat resisting steel, deep hole machining is had higher requirement.Therefore, for difficult-to-machine material, how to improve deep hole machining precision and become hot issue in machining.
Part material hardness is high, processing difficulties, following difficult point is mainly contained: (1) workpiece is precipitation-hardening stainless steel in actual process, martensitic structure is changed into after Quenching Treatment and cold treatment, precipitation strength phase after tempering, possess the resultant effect of phase transformation strengthening and ageing strengthening, there is after finished heat treatment high strength, plasticity, toughness and resistance to corrosion.(2) workpiece belongs to nickel-base alloy, thermal conductivity extreme difference, and during cutting, heat concentrates on cutting edge relief angle, causes cutting edge to produce plastic deformation, bonding and diffusive wear.(3) easily produce work hardening phenomenon in workpiece process, exacerbate the wearing and tearing of cutter, surface roughness value increases, and cutter life is reduced greatly, and cutter loss is serious.(4) during deep hole machining, chip removal is longer at rake face skidding distance, and chip easily and hole wall occurs to rub and extruding, and cutting temperature raises, and pulls bore area, is unfavorable for the precision in hole and the guarantee of surface roughness.(5) endoporus draw ratio is 1:10, and belong to deep hole thin-walled parts, required precision is higher, adopts conventional processing method to be difficult to ensure.(6) after heat treatment, the strength of materials and hardness high.
Summary of the invention
In order to final result the problems referred to above, the invention provides one and can ensure workpiece accuracy requirement, steady quality is reliable, reduces difficulty of processing, enhances productivity, and reduces the stainless steel deep hole thin-walled parts processing method of labor strength.
Stainless steel deep hole thin-walled parts processing method of the present invention, comprises the following steps:
The first step, selects suitable blank material, annealing in process, improves the machinability of material;
Second step, rough turn, remove the allowance of blank, inner hole of workpiece, on special equipment, adopts ejector drill processing in corresponding deep hole;
3rd step, heat treatment, quenching;
4th step, clamping workpiece profile, car workpiece end face;
5th step, car bullport and chamfering;
6th step, draw boring, draw hinge, draw boring, draw reamer number can determine according to allowance, be generally 2-4 cuttves, according to the feature of this part, on special deep hole drilling and boring machine, point two cuttves draw boring, after one cutter draws hinge, be machined to by endoporus and stay certain allowance, endoporus is machined to and requires size the most at last, in process, adopt cutting oil;
7th step, clamping workpiece profile, turner part both ends of the surface, ensure the overall length of workpiece, then adopt disposable mandrel, with Internal hole positioning, rough turn cylindrical is to requiring size, and as superfinishing honing benchmark, finally with excircle orientation, after centering, boring endoporus only requires size;
8th step, superfinishing Hole honing, adopts special Deep-hole Grouting oil in superfinishing Hole honing;
9th step, adopts disposable axle, with Internal hole positioning, and clamped one time, finish turning profile and two ends screw thread;
Tenth step, with excircle of workpiece location, after centering, the stepped hole at car endoporus two ends only requires size;
Preferably, boring cutter is drawn to adopt the uniform 180 ° of symmetrical centre cutters of four teeth.
Preferably, cutting oil adopts moral to moisten precious T400 inspecting hole extreme pressure cutting fluid.
The present invention can ensure workpiece accuracy requirement, and steady quality is reliable, reduces difficulty of processing, enhances productivity, and reduces labor strength.
Detailed description of the invention
Stainless steel deep hole thin-walled parts processing method of the present invention, comprises the following steps:
The first step, selects suitable blank material, annealing in process, improves the machinability of material;
Second step, rough turn, remove the allowance of blank, inner hole of workpiece, on special equipment, adopts ejector drill processing in corresponding deep hole;
3rd step, heat treatment, quenching;
4th step, clamping workpiece profile, car workpiece end face;
5th step, car bullport and chamfering;
6th step, draw boring, draw hinge, draw boring, draw reamer number can determine according to allowance, be generally 2-4 cuttves, according to the feature of this part, on special deep hole drilling and boring machine, point two cuttves draw boring, after one cutter draws hinge, be machined to by endoporus and stay certain allowance, endoporus is machined to and requires size the most at last, in process, adopt cutting oil;
7th step, clamping workpiece profile, turner part both ends of the surface, ensure the overall length of workpiece, then adopt disposable mandrel, with Internal hole positioning, rough turn cylindrical is to requiring size, and as superfinishing honing benchmark, finally with excircle orientation, after centering, boring endoporus only requires size;
8th step, superfinishing Hole honing, adopts special Deep-hole Grouting oil in superfinishing Hole honing;
9th step, adopts disposable axle, with Internal hole positioning, and clamped one time, finish turning profile and two ends screw thread;
Tenth step, with excircle of workpiece location, after centering, the stepped hole at car endoporus two ends only requires size; Boring cutter is drawn to adopt the uniform 180 ° of symmetrical centre cutters of four teeth.Cutting oil adopts moral to moisten precious T400 inspecting hole extreme pressure cutting fluid, it its have good cooling, the effect of cleaning misfortune essence, and there is higher heat-resisting, withstand voltage properties.When drawing boring, drawing hinge, make part and cutter obtain the band of cooling profit fully, effectively reduce the temperature of part, cutter, reduce the wearing and tearing of cutter, prevent long-pending generation of cutting, Part Surface Roughness is minimized.

Claims (3)

1. a stainless steel deep hole thin-walled parts processing method, is characterized in that, comprise the following steps:
The first step, selects suitable blank material, annealing in process, improves the machinability of material;
Second step, rough turn, remove the allowance of blank, inner hole of workpiece, on special equipment, adopts ejector drill processing in corresponding deep hole;
3rd step, heat treatment, quenching;
4th step, clamping workpiece profile, car workpiece end face;
5th step, car bullport and chamfering;
6th step, draw boring, draw hinge, draw boring, draw reamer number can determine according to allowance, be generally 2-4 cuttves, according to the feature of this part, on special deep hole drilling and boring machine, point two cuttves draw boring, after one cutter draws hinge, be machined to by endoporus and stay certain allowance, endoporus is machined to and requires size the most at last, in process, adopt cutting oil;
7th step, clamping workpiece profile, turner part both ends of the surface, ensure the overall length of workpiece, then adopt disposable mandrel, with Internal hole positioning, rough turn cylindrical is to requiring size, and as superfinishing honing benchmark, finally with excircle orientation, after centering, boring endoporus only requires size;
8th step, superfinishing Hole honing, adopts special Deep-hole Grouting oil in superfinishing Hole honing;
9th step, adopts disposable axle, with Internal hole positioning, and clamped one time, finish turning profile and two ends screw thread;
Tenth step, with excircle of workpiece location, after centering, the stepped hole at car endoporus two ends only requires size.
2. stainless steel deep hole thin-walled parts processing method as claimed in claim 1, is characterized in that, described in draw boring cutter to adopt the uniform 180 ° of symmetrical centre cutters of four teeth.
3. stainless steel deep hole thin-walled parts processing method as claimed in claim 2, is characterized in that, described cutting oil adopts moral to moisten precious T400 inspecting hole extreme pressure cutting fluid.
CN201410744263.3A 2014-12-09 2014-12-09 Method for machining stainless steel deep-hole thin-wall part CN104625614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410744263.3A CN104625614A (en) 2014-12-09 2014-12-09 Method for machining stainless steel deep-hole thin-wall part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410744263.3A CN104625614A (en) 2014-12-09 2014-12-09 Method for machining stainless steel deep-hole thin-wall part

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Publication Number Publication Date
CN104625614A true CN104625614A (en) 2015-05-20

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105414890A (en) * 2015-11-24 2016-03-23 沈阳黎明航空发动机(集团)有限责任公司 Finish machining method for thin-walled conduit
CN105499935A (en) * 2016-01-21 2016-04-20 中国矿业大学 Machining technology for batch production of thin and long deep-hole complex parts
CN105750843A (en) * 2016-04-29 2016-07-13 中国原子能科学研究院 Inner hole machining method for molybdenum alloy thin-walled long pipe
CN105921955A (en) * 2016-06-22 2016-09-07 山西平阳重工机械有限责任公司 Machining method of high-precision step deep hole part
CN105945539A (en) * 2016-07-12 2016-09-21 合肥新沪屏蔽泵有限公司 Shield pump rotary shaft hole machining process
CN106015339A (en) * 2016-06-30 2016-10-12 湖北三江航天红阳机电有限公司 Machining method for conical-hole, thin-walled and high-precision shaft sleeve type part
CN106392118A (en) * 2016-11-16 2017-02-15 中航飞机起落架有限责任公司 Machining method for deep hole reverse cavity of undercarriage
CN108115176A (en) * 2017-12-18 2018-06-05 航天科工哈尔滨风华有限公司 A kind of high-precision step shaft titanium alloy material Fine and Deep Hole high-efficiency machining method
CN108127335A (en) * 2017-10-31 2018-06-08 武汉船用机械有限责任公司 A kind of processing method of taper pin-hole
CN109079447A (en) * 2018-10-18 2018-12-25 中船动力有限公司 Diesel engine stand deep hole processing method
CN110091127A (en) * 2019-04-25 2019-08-06 上海航天精密机械研究所 A kind of thin-wall long and thin pipe fitting entirety precision machining method
CN110625139A (en) * 2019-10-08 2019-12-31 江西洪都航空工业集团有限责任公司 Machining process for bushing with conical hole
CN111015112A (en) * 2019-12-23 2020-04-17 贵州凯星液力传动机械有限公司 Machining method for thin-wall circular ring part

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105414890A (en) * 2015-11-24 2016-03-23 沈阳黎明航空发动机(集团)有限责任公司 Finish machining method for thin-walled conduit
CN105499935A (en) * 2016-01-21 2016-04-20 中国矿业大学 Machining technology for batch production of thin and long deep-hole complex parts
CN105750843B (en) * 2016-04-29 2017-12-26 中国原子能科学研究院 A kind of method for machining bore of molybdenum alloy thin-wall long pipe
CN105750843A (en) * 2016-04-29 2016-07-13 中国原子能科学研究院 Inner hole machining method for molybdenum alloy thin-walled long pipe
CN105921955A (en) * 2016-06-22 2016-09-07 山西平阳重工机械有限责任公司 Machining method of high-precision step deep hole part
CN105921955B (en) * 2016-06-22 2018-05-08 山西平阳重工机械有限责任公司 A kind of processing method of high-precision step deep-hole type parts
CN106015339A (en) * 2016-06-30 2016-10-12 湖北三江航天红阳机电有限公司 Machining method for conical-hole, thin-walled and high-precision shaft sleeve type part
CN105945539A (en) * 2016-07-12 2016-09-21 合肥新沪屏蔽泵有限公司 Shield pump rotary shaft hole machining process
CN106392118A (en) * 2016-11-16 2017-02-15 中航飞机起落架有限责任公司 Machining method for deep hole reverse cavity of undercarriage
CN108127335B (en) * 2017-10-31 2020-06-26 武汉船用机械有限责任公司 Method for machining taper pin hole
CN108127335A (en) * 2017-10-31 2018-06-08 武汉船用机械有限责任公司 A kind of processing method of taper pin-hole
CN108115176A (en) * 2017-12-18 2018-06-05 航天科工哈尔滨风华有限公司 A kind of high-precision step shaft titanium alloy material Fine and Deep Hole high-efficiency machining method
CN109079447A (en) * 2018-10-18 2018-12-25 中船动力有限公司 Diesel engine stand deep hole processing method
CN110091127A (en) * 2019-04-25 2019-08-06 上海航天精密机械研究所 A kind of thin-wall long and thin pipe fitting entirety precision machining method
CN110625139A (en) * 2019-10-08 2019-12-31 江西洪都航空工业集团有限责任公司 Machining process for bushing with conical hole
CN111015112A (en) * 2019-12-23 2020-04-17 贵州凯星液力传动机械有限公司 Machining method for thin-wall circular ring part

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