JPS6358295B2 - - Google Patents
Info
- Publication number
- JPS6358295B2 JPS6358295B2 JP2182781A JP2182781A JPS6358295B2 JP S6358295 B2 JPS6358295 B2 JP S6358295B2 JP 2182781 A JP2182781 A JP 2182781A JP 2182781 A JP2182781 A JP 2182781A JP S6358295 B2 JPS6358295 B2 JP S6358295B2
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- core
- disc
- mold
- convex portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D2065/13—Parts or details of discs or drums
- F16D2065/1304—Structure
- F16D2065/132—Structure layered
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D2065/13—Parts or details of discs or drums
- F16D2065/1304—Structure
- F16D2065/1328—Structure internal cavities, e.g. cooling channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0007—Casting
Description
【発明の詳細な説明】
この発明は摺動部内に空気通路が穿設されたベ
ンチレーテツドのデイスク・ブレーキ・ロータの
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a ventilated disk brake rotor having air passages formed in the sliding portion.
従来、この種ブレーキ・ロータは空気通路部分
を砂製の中子を用い、全体を鋳鉄で一体成形する
ようにして鋳造されていた。他方ブレーキ・ロー
タは小型軽量化が要求され、そのためには外径寸
法、ブレーキ・バツドとの摺動部の板厚及び、ハ
ツト部の板厚等を縮小することが考えられるが、
制動トルク、強度、熱疲労強度、鋳造技術等の問
題を含んでいて簡単には変更できなかつた。 Conventionally, this type of brake rotor has been cast by integrally molding the entire rotor with cast iron, using a sand core for the air passage section. On the other hand, brake rotors are required to be smaller and lighter, and to achieve this, it is possible to reduce the outer diameter, the plate thickness of the sliding part with the brake butt, and the plate thickness of the hat part.
It involved problems with braking torque, strength, thermal fatigue strength, casting technology, etc., and could not be easily changed.
摺動部の板厚を薄くするためには熱容量及び強
度の関係から、地板そのものを薄くすることなく
空気通路の軸方向の幅を狭くすることが提案され
ているが、そのためには砂製中子の厚さを薄くし
なければならず、従つて中子が折れ易くなり、又
中子の成形も困難となる欠点があり、ハツト部を
薄くすることには鋳造品として強度、チルの発
生、寸法精度等の問題のため一定の限界があつ
た。 In order to reduce the plate thickness of the sliding part, it has been proposed to reduce the axial width of the air passage without making the base plate itself thinner due to the heat capacity and strength issues. The thickness of the core must be made thinner, which makes the core more likely to break and also makes molding of the core more difficult. However, there were certain limitations due to problems such as dimensional accuracy.
この発明は上充にかんがみて、砂製中子をを使
用することなく空気通路が成形され、かつハツト
部が鋼板によつて成形され、空気通路の幅が充分
に狭く、薄くても製造容易なデイスク・ブレー
キ・ロータの製造方法を提供することを目的とす
る。 In view of the above features, the air passage is formed without using a sand core, the hat part is formed from a steel plate, and the width of the air passage is sufficiently narrow, making it easy to manufacture even if it is thin. The purpose of the present invention is to provide a method for manufacturing a disc brake rotor.
この発明の要旨はハツト部と円板部とよりなる
第１鋼板と、複数の空気通路が放射状に形成され
る第２鋼板とを円板部で固着してコアを構成し、
このコアを鋳型内に配置し、鋳ぐるみ鋳造によつ
て第１鋼板の円板部の外側と第２鋼板の外側に鋳
鉄の摺動部を成形するものであつて、第１鋼板と
第２鋼板との当接部に貫通穴を穿設して鋳ぐるみ
効果を大としたものである。 The gist of the present invention is to configure a core by fixing a first steel plate including a hat part and a disc part and a second steel plate in which a plurality of air passages are formed radially through the disc part,
This core is placed in a mold, and sliding parts of cast iron are formed on the outside of the disc part of the first steel plate and the outside of the second steel plate by cast casting. A through hole is drilled in the contact area with the steel plate to enhance the casting effect.
以下この発明の方法を適用した実施例を示す図
面について説明する。第１図〜第５図において、
第１鋼板１は外側へ突出する円環状に形成された
ハツト部１ａとハツト部１ａの外周に該部と同心
的に形成された円板部１ｂとから成つている。第
２鋼板２は円板部１ｂと同径の円環状で、その内
外両径から所定寸法内側の位置の間に扇形溝状に
形成された複数個の凹部２ａが所定の角度、ピツ
チで形成され、凹部２ａの深さ（空気通路Ｔの
幅）Ｗは機能上許容される最小寸法に規定されて
いる。第２鋼板２における凹部２ａ以外の部分は
凸部２ｂを形成し、凸部２ｂは円板部１ｂの内側
面に当接し、第１鋼板１と第２鋼板２とは当接し
た部分において所定箇所のスポツト溶接または、
所定個数の鋲によつて固着される。そして、円板
部１ｂに当接した凸部２ｂのうち放射状部には放
射状に長穴３が円板部１ｂをも貫通するように穿
設されている。 Below, drawings showing embodiments to which the method of the present invention is applied will be described. In Figures 1 to 5,
The first steel plate 1 consists of a hat part 1a formed in an annular shape projecting outward, and a disk part 1b formed concentrically with the outer periphery of the hat part 1a. The second steel plate 2 has an annular shape with the same diameter as the disk portion 1b, and a plurality of concave portions 2a formed in a fan-shaped groove shape are formed at a predetermined angle and pitch between positions a predetermined distance inside from both the inner and outer diameters of the second steel plate 2. The depth W of the recess 2a (width of the air passage T) is defined as a functionally acceptable minimum dimension. A portion of the second steel plate 2 other than the concave portion 2a forms a convex portion 2b, and the convex portion 2b abuts the inner surface of the disc portion 1b, and the first steel plate 1 and the second steel plate 2 are arranged in a predetermined manner at the abutted portion. spot welding or
It is fixed with a predetermined number of studs. Elongated holes 3 are radially bored in the radial portion of the convex portion 2b that abuts the disk portion 1b so as to penetrate through the disk portion 1b as well.
鋳型は上型５と下型６とによつて構成され、鋳
型に対して第１鋼板１と第２鋼板２とを固着して
構成したコア４を第１鋼板１を上にして設置した
状態では、上型５と第１鋼板１との間に第１キヤ
ビデイ７が、また、下型６と第２鋼板２との間に
第２キヤビデイ８が形成され、第１キヤビテイ
７、第２キヤビテイ８は環状でその半径方向幅は
凹部２ａの半径方向長さに等しいように形成され
ている。 The mold is composed of an upper mold 5 and a lower mold 6, and a core 4 formed by fixing a first steel plate 1 and a second steel plate 2 to the mold is installed with the first steel plate 1 facing upward. Here, a first cavity 7 is formed between the upper mold 5 and the first steel plate 1, and a second cavity 8 is formed between the lower mold 6 and the second steel plate 2. 8 is annular and its radial width is equal to the radial length of the recess 2a.
上述の鋳型に鋳鉄溶湯を注湯すると溶湯は長穴
３を貫流してコア４の両側面を鋳ぐるむように鋳
込まれる。 When molten cast iron is poured into the above mold, the molten metal flows through the elongated hole 3 and is cast so as to surround both sides of the core 4.
上述のようにして得られた鋳造品をを第４図に
おいて、Ｃ部、Ｄ部、Ｅ部を切削除去するととも
に鋳鉄で成形された摺動部９，１０の表面を仕上
加工してデイスクブレーキロータが得られる。 As shown in FIG. 4, the cast product obtained as described above is cut and removed at parts C, D, and E, and the surfaces of the sliding parts 9 and 10 made of cast iron are finished to form a disc brake. A rotor is obtained.
この発明によれば、空気通路は第１鋼板と第２
鋼板とによつて形成されるので、その軸方向の幅
（ｗ）は必要最小限まで狭くして摺動部の厚さを
縮減することができ、また、ハツト部は第１鋼板
によつて形成されているので、その厚さも必要最
小限に縮減することができ、従つて軽量なデイス
クブレーキロータの製造が可能である。 According to this invention, the air passage is formed between the first steel plate and the second steel plate.
Since it is formed by the first steel plate, its axial width (w) can be narrowed to the minimum necessary to reduce the thickness of the sliding part, and the hat part is formed by the first steel plate. Since the thickness of the disc brake rotor is formed, the thickness can be reduced to the necessary minimum, and therefore a lightweight disc brake rotor can be manufactured.
なお、この発明は第６図に示すように、第２鋼
板１２をその凹部１２ａの半径方向の両端におい
て閉塞することなく開口状態とし、下型１６によ
つて凹部１２ａ内へ溶湯が流入しないように構成
することができる。 In addition, as shown in FIG. 6, this invention makes the second steel plate 12 open at both ends of the recess 12a in the radial direction without being closed, and prevents the molten metal from flowing into the recess 12a by the lower die 16. It can be configured as follows.
図はこの発明の方法を適用した実施例を示し、
第１図はコアの正面図、第２図は第１図における
Ａ−Ａ断面図、第３図はコアを鋳型に装着した状
態の断面側面図、第４図は製造が完了したデイス
クブレーキロータの断面側面図、第５図は第４図
におけるＢ−Ｂ断面図、第６図は他の実施例を示
す断面側面図である。
１……第１鋼板、１ａ……ハツト部、１ｂ……
円板部、２，１２……第２鋼板、２ａ……凹部、
２ｂ……凸部、３……穴、４……コア、５……上
型、６……下型、７……第１キヤビテイ、８……
第２キヤビテイ。
The figure shows an example of applying the method of this invention,
Figure 1 is a front view of the core, Figure 2 is a cross-sectional view taken along line A-A in Figure 1, Figure 3 is a cross-sectional side view of the core installed in the mold, and Figure 4 is a disc brake rotor that has been manufactured. FIG. 5 is a cross-sectional side view taken along line BB in FIG. 4, and FIG. 6 is a cross-sectional side view showing another embodiment. 1... First steel plate, 1a... Hat part, 1b...
Disc portion, 2, 12... second steel plate, 2a... recessed portion,
2b... Convex portion, 3... Hole, 4... Core, 5... Upper die, 6... Lower die, 7... First cavity, 8...
Second cavity.
Claims (1)
成された円板部とから成る第１鋼板と、円板部表
面との間に複数個の空気通路を放射状に形成する
凹部と互に隣接する凹部間にあつて円板部表面に
当接するように形成された凸部とから成る第２鋼
板とを固着してコアを構成し、凸部において第２
鋼板と第１鋼板とを貫通する穴を穿設し、コアを
鋳型内に設置した状態では円板部における該部と
同心的な所定径の環状部分に対応してコアの両側
に穴を貫流して金属溶湯が流入するキヤビテイが
形成されるようにしてコアを溶湯によつて鋳ぐる
みとすることを特徴とするデイスク・ブレーキ・
ロータの製造方法。1 A first steel plate consisting of a hat part and a disc part formed concentrically around the outer periphery of the hat part, and a concave part that forms a plurality of air passages radially between the surface of the disc part and the first steel plate are adjacent to each other. A second steel plate consisting of a convex portion formed between the concave portions and in contact with the surface of the disk portion is fixed to constitute a core, and a second steel plate is fixed at the convex portion.
A hole is drilled through the steel plate and the first steel plate, and when the core is installed in the mold, a hole is formed on both sides of the core corresponding to an annular part of a predetermined diameter concentric with the part in the disc part. A disc brake characterized in that the core is filled with molten metal so that a cavity is formed into which molten metal flows.
Rotor manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2182781A JPS57137730A (en) | 1981-02-17 | 1981-02-17 | Manufacture of disc brake rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2182781A JPS57137730A (en) | 1981-02-17 | 1981-02-17 | Manufacture of disc brake rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57137730A JPS57137730A (en) | 1982-08-25 |
| JPS6358295B2 true JPS6358295B2 (en) | 1988-11-15 |
Family
ID=12065893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2182781A Granted JPS57137730A (en) | 1981-02-17 | 1981-02-17 | Manufacture of disc brake rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57137730A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2746156B1 (en) * | 1996-03-13 | 1998-06-05 | BRAKE DISC FOR DISC BRAKES, PARTICULARLY FOR MOTOR VEHICLES | |
| JP4627346B2 (en) * | 2000-03-31 | 2011-02-09 | 本田技研工業株式会社 | brake disc |
| CN106735094B (en) * | 2016-12-30 | 2019-01-18 | 卢森加 | The manufacturing method of bi-metal brake drum |
-
1981
- 1981-02-17 JP JP2182781A patent/JPS57137730A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57137730A (en) | 1982-08-25 |
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