JP3011056B2 - Processing method of aluminum and aluminum alloy - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming aluminum, aluminum alloy, aluminum clad steel, etc. (hereinafter referred to as "aluminum material") in any temperature range from cold to hot. The present invention relates to a processing method capable of preventing occurrence of troubles, surface flaws such as seizure and galling of a processing tool and an aluminum material, and realizing improvement of workability and productivity and improvement of product surface quality.

[0002]

2. Description of the Related Art In general, in order to form a metal into a desired shape by molding, cold, warm, or hot working is performed. Processing lubricants are used.

[0003] Conventionally, in cold working of aluminum materials, lubricants containing various oiliness improvers are used as undiluted liquids using low-viscosity mineral oil as a base oil. The reason why the low-viscosity mineral oil is used as the base oil is to obtain a surface gloss peculiar to the aluminum material by forming in a boundary lubrication region where the processing tool and the aluminum material are in direct contact.

[0004] In hot working of an aluminum material, aluminum as a work material is transferred to the surface of a working tool to form a coating layer. Therefore, the workpiece is processed in a state of being in contact with the coating layer on the tool surface, and surface flaws such as seizure and galling are likely to occur. When surface flaws such as seizure and galling occur, the product surface quality is significantly reduced. Generally, as hot working oil for aluminum materials,
Mineral oil is used as a base oil, and oiliness improvers such as fatty acids, fats and oils, fatty acid esters, extreme pressure agents, rust inhibitors, antioxidants, etc. are blended with the base oil and emulsified mainly with an anionic surfactant. Emulsions of about 3-10% are used.

Japanese Unexamined Patent Publication (Kokai) No. 2-298594 discloses a lubricant for warm forming of an aluminum material in a temperature range of 180 to 300 ° C. containing a soap of a fatty acid and a graphite powder.
However, even if a small amount of graphite is contained, the friction coefficient of the machined friction surface is significantly reduced locally, causing slip and biting defects, making machining difficult, and preventing surface defects such as seizure. Sufficient graphite cannot be contained, and a sufficient anti-seizure effect has not been obtained.

Japanese Patent Application Laid-Open No. Hei 2-145592 discloses that mineral oil having a viscosity of 80 cSt (40 ° C.) or less, one or more compounds among fatty acids, fats and oils and fatty acid monoesters having a predetermined carbon number, and others. The hot-rolling oil composition of an aluminum material containing the additives described in JP-B-5-76998 is disclosed in Japanese Patent Publication No. 5-76998, in which a lubricating oil component containing an aliphatic alcohol and a specific dispersant component are contained as essential components. Japanese Patent Publication No. 31378 / cold cold rolling oil composition describes a lubricant for cold working of aluminum material in which alkylpentaerythritol phosphite or the like is blended into a lubricating oil and a cold working method using the same. ing.

Although these conventional lubricants exhibit maximum lubricating performance in cold, warm and hot temperature ranges,
It does not provide sufficient lubricity in all temperature ranges. In addition, due to the recent spread of mass production systems and the trend toward high quality of aluminum processed products, there is an increasing demand for lubricating agents, processing lubricants that improve surface quality, etc., or processing methods. The fact is that a processing method that can sufficiently satisfy all of the requirements has not been developed yet.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art.
Extends tool life by preventing the occurrence of surface flaws such as seizure and galling of machining tools and aluminum materials without causing troubles such as slipping or biting when molding aluminum materials. An object of the present invention is to provide a method for processing aluminum and an aluminum alloy, which can improve efficiency and productivity and improve product surface quality such as glossiness.

[0009]

In order to achieve the above object, the present inventor has set forth a working lubricant which can be used in the forming of an aluminum material in any temperature range such as cold, warm and hot. Was studied from the viewpoint of composition, and the following findings were obtained, thereby completing the present invention.

A lubricant having a high basicity has a higher reactivity with oxides formed on the surface of an aluminum material than a commonly used lubricant having a high acidity (acid value), and is less likely to peel off from the surface during processing. A reaction film is formed. Thereby, lubricity is improved.

In the overbased metal salt sulfonate and overbased metal salt phenate, a carbonate having a particle size of 150 angstroms or less which formed a colloidal dispersion in oil is present. Although the ultrafine-grain carbonate itself does not have lubricity, it has a function as a carrier for introducing a highly basic metal salt sulfonate or metal salt phenate having lubricity to the interface between the roll and the aluminum material.

Further, the ultrafine-grained carbonate is used between the aluminum material and the processing tool during processing regardless of the processing temperature, that is, whether the processing is performed in a cold, warm, or hot state. It has the effect of physically suppressing metal-to-metal contact. In other words, by introducing this ultra-fine grain carbonate to the surface irregularities of the friction surface between the tool and the aluminum material, direct contact between the aluminum material and the processing tool can be thoroughly suppressed and seizure can be prevented. it can.

[0013] Graphite is a shear sliding type solid lubricating material. However, if high-load processing is performed with a lubricant containing graphite in a commonly used lubricating oil, slipping or biting failure occurs, and processing cannot be performed. Therefore, when graphite is used in combination with a highly basic metal salt sulfonate or a highly basic metal salt phenate, the ultrafine-grained carbonate acts to give a suitable friction at the friction interface and controls the lubricating action of the graphite. Can be reliably reduced to the minimum value required for stable processing that does not cause slip, and this can be maintained.

Further, by using the phosphonate ester together with a highly basic metal salt sulfonate or a highly basic metal salt phenate, the adhesion of the lubricant composition to the aluminum material can be remarkably improved. In addition, seizure at high temperature,
This has the effect of enhancing the effect of preventing surface flaws such as galling.

If the aluminum material is processed using the above-mentioned lubricant, the frictional force required for the processing is maintained, and the seizure which occurs on the processing tool without causing slip or biting failure,
Surface flaws such as galling can be prevented and tool life can be greatly extended, resulting in good product surface quality.

The gist of the present invention lies in the following methods (1) to (3) for processing an aluminum material.

(1) Aluminum and aluminum alloy
For rolling, extrusion, drawing, forging and straightening of gold
Based on the total amount of the composition,
And one or more of the highly basic metal salt phenates in a total of 10 to
70% by weight, and 0.1 to 15% by weight of phosphonate
Characterized by supplying a lubricant composition containing
Processing method of minium and aluminum alloy.

(2) In the processing of aluminum and aluminum alloy, 10 to 70% by weight of a total of at least one of a highly basic metal salt sulfonate and a highly basic metal salt phenate, and 0.5% of graphite, based on the total amount of the composition. A method for processing aluminum and an aluminum alloy, comprising supplying a lubricant composition containing up to 20% by weight.

(3) Aluminum and aluminum alloy
In the processing of gold, highly basic metals based on the total amount of the composition
At least one of salt sulfonate and highly basic metal salt phenate
10 to 70% by weight in total, and 0.5 to 20% by weight of graphite
Containing 0.1 to 15% by weight of a phosphonate ester
Characterized by supplying a lubricant composition
Of aluminum and aluminum alloy.

[0020]

In the present invention, aluminum and aluminum alloy include pure aluminum, aluminum alloy, clad materials thereof and the like. Further, the processing method, cold, as well as the rolling of the sheet material between warm or hot, rolling the tubing or strip material, extrusion, drawing, forging, includes any molding of corrective or the like.

The alkylaromatics used as raw materials for the highly basic metal salt sulfonate and the highly basic metal salt phenate according to the present invention include mineral oil lubricating oil fractions, synthetic compounds,
For example, alkylbenzene, polyolefin obtained by alkylating benzene, dinonylnaphthalene, and the like can be used.

In these highly basic metal salt sulfonates and highly basic metal salt phenates, ultrafine-grain carbonates (Ca with a particle size of 150 Å or less) precipitated during the production process are contained.
CO ₃ etc.) and form a colloidal dispersion in oil. Although the carbonate fine particles themselves do not have any lubricating effect, in order to more easily exert a lubricating effect due to a high adsorption action on metals and oxides having high basic metal salt sulfonate and high basic metal salt phenate, It has a function as a carrier that carries a highly basic metal salt sulfonate and a highly basic metal salt phenate having lubricity to a friction interface. Furthermore, the metal salt fine particles carried between the processing tool and the aluminum material can prevent direct contact between the processing tool and the aluminum material at the friction interface, thereby preventing seizure and galling.

As described above, in the present invention, a lubricant composition containing a specific amount of at least one of a highly basic metal salt sulfonate and a highly basic metal salt phenate is used in a tool for processing an aluminum material and a lubricant composition before the processing. There is a big feature in supplying to the surface of aluminum material.

That is, first, the lubricity is improved by the presence of a highly basic metal salt sulfonate and / or a highly basic metal salt phenate as a highly basic substance which is highly reactive with an oxide film formed on the surface of an aluminum material. Let it.

Second, the particle size precipitated in the process of producing a highly basic metal salt sulfonate or a highly basic metal salt phenate
Ultra-fine grain carbonates (CaCO <150 Å or less)
₃ )), the ultrafine-grained carbonate acts as a carrier to improve the lubricity of the lubricant to the friction surface, and to reduce the direct contact between the working tool and the aluminum material and the friction to prevent slip. High friction at the interface can be achieved.

Therefore, for example, the effect and effect of powdery calcium carbonate having a particle size of about 0.05 to 0.50 μm separately prepared and mixed with oil as disclosed in Japanese Patent Application Laid-Open No. 3-151101 are described. Obviously different.

Next, the reason why the contents of the highly basic metal salt sulfonate and the highly basic metal salt phenate are specified as described above will be described.

The content of the overbased metal salt sulfonate and overbased metal salt phenate is such that at least one of them is 10 to 70% by weight based on the total amount of the composition. Content is 10
When the content is less than the weight percentage, seizure and galling on the processing tool cannot be sufficiently prevented, and the surface quality of the product is deteriorated. On the other hand, when the content exceeds 70% by weight, the above effect is saturated. Therefore, their content was 10-70% by weight based on the total composition. It is preferably 20 to 60% by weight from the viewpoint of the effect of preventing seizure and galling under high load.

The base number of the highly basic metal salt sulfonate or the highly basic metal salt phenate is preferably at least 40 mgKOH / g according to JIS K2501 (potentiometric titration method). Those with 200 to 500 mgKOH / g are particularly excellent in anti-seizure ability.

That is, if the base number is low, the content of carbonate (CaCO ₃ etc.), which is ultrafine solid particles in the basic metal salt sulfonate or the basic metal salt phenate, is small, so that the metal (tool and aluminum material) (CaCO) introduced to the friction interface, necessary to physically prevent direct contact between
₃ ) is insufficient. Therefore, if the base number is low, it is not possible to completely prevent seizure and galling of the working tool during working, and the surface quality of the product does not reach a satisfactory level.

Although it depends on the concentration, viscosity and rolling conditions when the lubricant composition of the present invention is supplied to the surface of a working tool or an aluminum material, it is particularly necessary to supply the lubricant composition in a state of high viscosity or close to a stock solution or to reduce the load. Under processing conditions, the base number is 200 mg KOH
Even if less than / g, a sufficient lubricating effect can be exhibited. But 40mg
Since the effect is hard to be obtained at less than KOH / g, as described above, the preferable base value is set to 40 mgKOH / g or more.

On the other hand, if the base number exceeds 500 mgKOH / g, a lubricant having properties such as appropriate viscosity cannot be produced at the current state of the art. However, this is not the case as far as manufacturing technology allows.

As the overbased metal salt sulfonate or overbased metal salt phenate to be contained in the lubricant composition used in the present invention, overbased Ca sulfonate, overbased Ca phenate, overbased Mg sulfonate and the like can be used. The metal may be appropriately selected from alkaline earths such as Ca, Mg and Ba and alkali metals such as Na. Further, from the viewpoint of the above effects, it is preferable that at least 10% by weight or more of one or more of highly basic Ca sulfonate and highly basic Ca phenate, in which the metal is an alkaline earth, particularly Ca, is contained.

In addition, those containing a predetermined amount of a highly basic metal salt sulfonate or a highly basic metal salt phenate, further contain a low basicity (base number less than 40 mg KOH / g) metal salt sulfonate or a metal salt phenate. It can also be done.
In this case, it is preferable that the weighted average of the base numbers of these metal salts (the average value in consideration of the respective values) is 40 mgKOH / g or more. More preferably, it is 200 mgKOH / g or more.

The lubricating oil composition according to the present invention can be sufficiently used by blending one or more of a highly basic metal salt sulfonate and a highly basic metal salt phenate into a generally used lubricating base oil. If necessary, other solid lubricants, extreme pressure additives, antioxidants, pour point depressants, viscosity index improvers and the like can be added.

Examples of the lubricating base oil include mineral oils, synthetic lubricating oils, oils such as rapeseed oil and lard oil, higher fatty acids and esters thereof.

Examples of the solid lubricant include graphite, molybdenum disulfide, boron nitride, mica, talc and the like.

Among them, the inclusion of graphite causes the coefficient of friction to be extremely lowered, causing slippage and other poor biting. However, in the processing method of the present invention, the lubricant composition used is composed of a highly basic metal salt. Since it contains a sulfonate or a highly basic metal salt phenate, the friction coefficient is not extremely reduced even when graphite is used in combination. Therefore, even if graphite is contained, seizure and galling of the working tool can be prevented without causing troubles such as slippage or biting failure, and the surface quality of the aluminum material can be further improved.

The graphite content is 0.5 to 20% by weight based on the total amount of the composition. If the amount is less than 0.5% by weight, the effect of reducing the friction coefficient of graphite is insufficient, while if it exceeds 20% by weight, the dispersibility and stability of the graphite in the lubricant composition are deteriorated, and slip and biting are poor on the processed friction surface. This is because it is easy to cause the like. In order to further exert the effect of reducing the friction coefficient under high pressure, the graphite content is preferably more than 10% by weight. On the other hand, in consideration of processing stability in low-load processing at a low draft, the content is preferably 0.5 to 15% by weight.

As the kind of graphite, artificial or natural graphite can be used. The average particle size of graphite is
Considering the effect of preventing the occurrence of troubles such as slips,
Those having a diameter of 0.1 to 5 μm are preferred.

Examples of extreme pressure additives include sulfur-based extreme pressure additives such as sulfurized fats and oils, sulfide mineral oil, dinonyl polysulfide, tricresyl phosphate, dioleyl hydrogen phosphite, and hydroxymethyldi-2-ethylhexyl phosphonate. And other phosphorus-based extreme pressure additives.

In the present invention, in particular, phosphonic acid esters belonging to phosphorus-based extreme pressure additives, for example, mono-2-ethylhexyl 2-ethylhexyl phosphonate, hydroxymethyl di-2-ethylhexyl phosphonate, triethyl 3-phosphonopropionate And the like.

Phosphonic acid is a phosphono group

[0044]

Embedded image

Is a generic term for acids containing, and is conventionally synthesized as a raw material intermediate for agricultural chemicals, but by utilizing their rust-preventive and anti-corrosive effects, water treatment, detergent additives, paper pulp, photographs, etc. Used in the field.

In the lubricant composition used in the present invention, the phosphonic acid ester is used in combination with a highly basic metal salt sulfonate or a highly basic metal salt phenate to greatly enhance the adhesion of the lubricant composition to aluminum materials. In addition to this, the effect of preventing surface flaws such as seizure and galling at high temperatures can be enhanced.

The content of the phosphonate ester in the lubricant composition is 0.1 to 15% by weight based on the total amount of the composition. When the content is less than 0.1% by weight, the above effect is insufficient. On the other hand, when the content exceeds 15% by weight, the effect is saturated. More preferably, it is 0.1 to 9.0% by weight.

In particular, phosphonic acid esters having an acid value of 5 mgKOH / g or less, for example, having a chemical structure

[0049]

Embedded image

The hydroxymethyl di-2-ethylhexyl phosphonate represented by the formula (1) is excellent in chemical stability when mixed with a highly basic metal salt sulfonate or a highly basic metal salt phenate, so that the effect of the present invention is maximized. Is more preferable.

Examples of antioxidants include methylene-4,
Examples thereof include bisphenols such as 4-bis (2,6-di-tert-butylphenol), alkylphenols such as di-tert-butylcresol, and naphthylamines.

Examples of pour point depressants and viscosity index improvers include polymethacrylates and polyolefins.

The addition amount of the solid lubricant other than graphite is about
About 1 to 10% by weight, about 1 to 15% by weight of extreme pressure additives other than phosphonate ester, about 0.01 to 1.0% by weight of antioxidant, pour point depressant, viscosity index The addition amount of the improver is about 1 to 5% by weight, respectively.

The lubricant supply means according to the present invention may be, for example, an air atomizing method in which the lubricant is mixed with compressed air and supplied in the form of a spray, or a water which is mixed with water and supplied in accordance with the required viscosity and concentration. Injection method, furthermore, steam atomization method of supplying by atomizing with heated steam, or method of dispersing in water in advance and supplying as emulsion may be appropriately selected.Either method does not change the effect of the present invention at all. Absent. Needless to say, a method of supplying undiluted solution (neat) may be used, and other general refueling methods may be used. When supplied as a stock solution, it does not prevent the lubricant of the present invention from being made nonflammable by using a water-soluble type as required.

Further, the lubricant according to the present invention may be directly supplied to a working tool such as a rolling roll or a forging die or the surface of an aluminum material before working by the above method, or the reinforcing tool (roll) may be used. ) Does not change the effect of the present invention at all.

According to the processing method of the present invention, by using a specific lubricant composition as a processing lubricant, a lubricating property can be improved by forming a surface film which is hardly peeled off during processing, and the lubricity introduction property to the friction surface can be improved. In addition, seizure and galling due to direct contact between metals can be prevented.

Further, the highly basic metal salt sulfonate and metal salt phenate contained in the lubricant composition used in the present invention are also excellent in heat resistance, and burn or decompose during warm or hot working. Since it is a fluid or a state close to a fluid without any problem, it has excellent lubricity even during warm and hot working. Therefore, if this lubricant composition is used, the same excellent lubricating effect can be obtained in all temperature ranges from cold working to hot working of aluminum materials.

[0058]

Next, a description will be given of a specific embodiment.

First, the present invention examples Nos. 6 to 9, 11 and
13 to 17 , and 14 kinds of lubricant compositions of Comparative Examples Nos . 18 to 21 were prepared. Each lubricant may be a metal salt sulfonate having a different base number and a metal, a metal salt phenate, and if necessary, graphite (average particle size: 5 μm) and / or phosphonate (hydroxymethyldi-2-ethylhexylphosphonate). Refined mineral oil having the viscosity specified by VG 46 is used as the balance, followed by stirring and blending with a homomixer.

(Example 1) In the process of manufacturing an aluminum wheel material having an outer diameter of 570 mm φ and a height of 230 mm (see FIG. 1),
Immediately before forging, the above lubricants are supplied as they are to the forging die surface heated to 350 to 400 ° C by a spray nozzle, and after the forging process, whether or not seizure has occurred on the aluminum wheel surface, The degree of sticking was examined. The evaluation was performed in the following five stages by observing the occurrence of surface flaws (seizure) on the outer peripheral rib portion 12 of the aluminum wheel 11 shown in FIG. In addition, if it was ◎, お よ び and □, it was regarded as good.

◎: No surface flaws 焼: Seizures occur but slight □: Seizures occur, area ratio less than 5% △: Seizures occur, area ratio 5 to 20% ×: Seizures occur, area ratio exceeds 20% Table 2 shows the survey results. Note that the degree of seizure on the surface of the forging die almost coincided with the degree of seizure on the surface of the aluminum wheel.

As is clear from the results in Table 2, according to the working method of the present invention ( Nos. 6 to 9, 11, 13 to 17 ), the surface flaws (seizure) of the forging die tool and the aluminum material. Can be prevented or significantly reduced, and workability, productivity and product quality can be remarkably improved.

According to Examples 6 to 8 of the present invention, seizure resistance is improved by using a lubricant containing graphite together with highly basic Ca sulfonate and highly basic Ca phenate, and 0.5 as defined in the present invention. When it was contained in the range of 2020% by weight, the more the graphite content, the better the seizure resistance.

In addition, when a lubricant containing a phosphonate ester in the range of 0.1 to 15% by weight is used from Examples 13 to 17 of the present invention , the seizure resistance is further improved by including the lubricant together with graphite. You can see that

[0065]

Further, those containing a total of at least 20% by weight of at least one of a highly basic metal salt sulfonate and a highly basic metal salt phenate ( Examples Nos. 6 to 9 and 11 of the present invention) having a base number of 200 mg KOH / g or more highly basic (base number 200mgKOH
/ comparison of g less than N O.9 and other inventive examples) have also been shown in particular that anti-seizing effect is great.

From the comparison of Invention Examples Nos. 13, 14, and 15, the effect is saturated when the content of the phosphonate is 9.0% by weight or more, so that 0.1 to 9.0% by weight is more preferable. From the comparison between Examples No. 14 and No. 16, it was confirmed that the phosphonic acid ester having a low acid value was more effective and the lubricant composition itself was excellent in stability.

On the other hand, Comparative Example No. 18 in which only a low base number Ca sulfonate was contained, and Comparative Example No. 1 in which the content of a highly basic Ca sulfonate was less than the range specified in the present invention.
9, Comparative Example No. 2 containing only graphite in addition to refined mineral oil
0, when the lubricant composition of Comparative Example No. 21 containing only the phosphonate ester was used, the anti-seizure effect was insufficient.

Example 2 When cold rolling an aluminum plate (50 mm × 1000 mm) with a four-high rolling mill , the lubricants of Nos. 6 to 9, 11 , and 13 to 21 were dispersed in water in advance. Then, the emulsion was put into an emulsion state and directly supplied to a roll for rolling by a spray nozzle. After cold rolling, the surface condition of the roll for rolling, the glossiness of the aluminum plate surface, and the slip and biting properties during rolling were examined. Regarding the surface condition of the rolling roll, the surface condition after cold rolling was visually observed, and it was determined that there was no occurrence of seizure or galling. Regarding the aluminum plate surface gloss,
Similarly, the surface condition was visually observed and evaluated according to the following four grades. In addition, when it was ◎, △ and Δ, it was judged as good.

◎: extremely good gloss 良好: good gloss ：: slightly poor gloss ×: poor gloss (deterioration, cracking) The results of the investigation are shown in Table 3. From these results, according to the processing method of the present invention (Nos. 6 to 9, 11, 13 to 17 ), it is possible to greatly improve the surface gloss of the aluminum plate and the state of the surface flaw of the rolling roll. It can be seen that workability, productivity and product quality can be significantly improved.

In Example No. 11 of the present invention using a lubricant containing more than 20% by weight of graphite, the surface flaw of the rolling roll was greatly improved, but slipping during rolling was apt to occur. Has become.

From a comparison of Invention Examples Nos. 6, 7, and 8,
It can be seen that the use of a lubricant containing 10% by weight or more of graphite completely prevents the surface defects (seizure and galling) of the rolling roll and further improves the glossiness of the aluminum plate surface. Therefore, it can be said that graphite is more preferably contained in an amount exceeding 10% by weight as described above. The effect of adding a highly basic metal salt sulfonate, a highly basic metal salt phenate, a phosphonate ester or the like to the lubricant was almost the same as in Example 1.

[0073]

[Table 1]

[0074]

[Table 2]

[0075]

[Table 3]

[0076]

According to the method of the present invention, it is possible to prevent surface flaws such as seizure and galling of a working tool in the processing of an aluminum material regardless of whether it is cold or hot. Prevents seizure of machining tools without causing troubles during machining such as poor engraving, exerts an excellent effect on extending tool life, improves rolled product quality such as gloss, and improves work efficiency etc. Can be achieved.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a seizure state on an outer peripheral rim portion of an aluminum wheel.

[Explanation of symbols]

 11: Aluminum wheel, 12: Rib, 13: Seizure

Continued on the front page (51) Int.Cl. ⁷ Identification code FI C10M 125/02 C10M 125/02 137/12 137/12 159/20 159/20 // C10N 10:04 20:00 30:06 40:24 (58) Field surveyed (Int. Cl. ⁷ , DB name) C10M 169 / 04,125 / 02,137 / 04 C10M 159/22-159/24 C10N 40:24 B21B 45/02 B21C 9/00 WPI / L (QUESTEL)

Claims (3)

(57) [Claims] 1. Pressure of aluminum and aluminum alloy
In rolling, extrusion, drawing, forging and straightening,
Highly basic metal salt sulfonate and high
10 to 70 weight in total of one or more basic metal salt phenates
%, And 0.1 to 15% by weight of a phosphonate ester
Characterized by supplying a lubricant composition
Of aluminum and aluminum alloy . 2. In the processing of aluminum and aluminum alloys, a total of 10 to 70% by weight of at least one of a highly basic metal salt sulfonate and a highly basic metal salt phenate and 0.5 to 100% by weight of graphite based on the total amount of the composition. A method for processing aluminum and an aluminum alloy, comprising supplying a lubricant composition containing 20% by weight. 3. The addition of aluminum and an aluminum alloy.
Process, based on the total amount of the composition,
Total of one or more of phonate and highly basic metal salt phenate
Contains 10 to 70% by weight, and 0.5 to 20% by weight of graphite,
Lubrication containing 0.1 to 15% by weight of phosphonate ester
And aluminum, characterized in that it supplies an agent composition.
And aluminum alloy processing method.