JPS61140327A - Press working method of sheet metal accompanied with sheet-thickness increase and its device - Google Patents

Press working method of sheet metal accompanied with sheet-thickness increase and its device

Info

Publication number
JPS61140327A
JPS61140327A JP59263552A JP26355284A JPS61140327A JP S61140327 A JPS61140327 A JP S61140327A JP 59263552 A JP59263552 A JP 59263552A JP 26355284 A JP26355284 A JP 26355284A JP S61140327 A JPS61140327 A JP S61140327A
Authority
JP
Japan
Prior art keywords
punch
blank
presser
sheet metal
die
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.)
Granted
Application number
JP59263552A
Other languages
Japanese (ja)
Other versions
JPH0555208B2 (en
Inventor
Toshibumi Terao
寺尾 俊文
Toshihide Shimizu
俊秀 清水
Yukio Segawa
瀬川 行雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KIKUCHI PRESS KOGYO KK
Subaru Corp
Original Assignee
KIKUCHI PRESS KOGYO KK
Fuji Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KIKUCHI PRESS KOGYO KK, Fuji Heavy Industries Ltd filed Critical KIKUCHI PRESS KOGYO KK
Priority to JP59263552A priority Critical patent/JPS61140327A/en
Publication of JPS61140327A publication Critical patent/JPS61140327A/en
Publication of JPH0555208B2 publication Critical patent/JPH0555208B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20Deep-drawing
    • B21D22/26Deep-drawing for making peculiarly, e.g. irregularly, shaped articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE:To work a sheet metal without using an unnecessary thick one and to reduce the weight of a blank and the cost of press-working by forming only the edge part of a blank into a thicker one; CONSTITUTION:A press punch 12 is matched to the inside face of a blank 15, and a spring is compressed by lowering a punch holder 21 to fix the blank 15 by holding it between the punch 12 and a die 11. When the punch side is further lowered while sliding a rod part 16a along the punch 12, an upset punch 13 is fitly inserted into a present space S to bring the flat face of its front end into contact with the edge part 15a of blank 15 in order to press it, then the edge part 15a is compressed and formed so that its metal flow is directed to the outer-diameter direction. In this way, the edge part 15a is smoothly compressed and formed along the shape of large radius of curvature of a corner part C, so as to fill up the annular space S, thereby forming a large wall- thickness part 15a'.

Description

【発明の詳細な説明】[Detailed description of the invention] 【産業上の利用分野】[Industrial application field]

本発明は、板厚増加を伴う板金プレス加工法並びにプレ
ス装置に係り、詳しくは絞り加工により形成されたブラ
ンクの縁部を据込み加工様に圧縮成形する板金プレス加
工法、並びに該加工法を用いた製造装置に関する。
The present invention relates to a sheet metal pressing method and a press apparatus that involve increasing the thickness of a sheet metal, and more specifically to a sheet metal pressing method in which the edge of a blank formed by drawing is compression-formed in an upsetting manner, and the processing method. Regarding the manufacturing equipment used.

【従来の技術】[Conventional technology]

一般に、無段変速装置には、可動シープを制御するため
に該可動シープに連結して油圧装置が取付けられており
、該油圧装置のピストン及びシリンダ部分は板金加工か
らなる板材が用いられているが、該ピストンのシリンダ
間接部分は油密用の0リングを保持するため、肉厚に構
成する必要がある。ところで、従来、板金加工としては
、切断。 曲げ及び絞り加工が一般的であり、据込み等の肉厚を厚
くする加工は不可能とされており、従って、上記ピスト
ン部材のように一部に肉厚部分を必要とする板金加工は
、該肉厚部分に対応する厚板を用いて加工し、肉厚を必
要とする部分のみでなく、必要としない部分をも肉厚に
より構成していた。
Generally, a continuously variable transmission is equipped with a hydraulic device connected to the movable sheep in order to control the movable sheep, and the piston and cylinder portions of the hydraulic device are made of plate material made of sheet metal processing. However, the portion of the piston that connects to the cylinder must be thick because it holds an oil-tight O-ring. By the way, conventional sheet metal processing involves cutting. Bending and drawing processes are common, and processes that increase wall thickness such as upsetting are considered impossible. Therefore, sheet metal processing that requires thick parts in some parts, such as the above-mentioned piston member, is A thick plate corresponding to the thick portion is used for processing, and not only the portions that require thick wall thickness but also the portions that do not require thick wall thickness are constructed using thick plates.

【発明が解決しようとする問題点】[Problems to be solved by the invention]

従って、従来の板金加工では、全体が厚板からなるため
、重量が重くなると共に、コストアップの原因になって
おり、かつ加工も面倒になっていた。 また、材料を打抜きし、更に絞り及び孔あけ加工して、
その後、縁部等を据込み加工して一部のみを肉厚に成形
することも考えられるが、該据込み加工として、第4図
(m、(b)に示すように、ブランク1の縁部1aをダ
イス2に合わせて押え、この状態で据込み用ポンチ3を
矢印方向に移動すると、座屈、並びに隔部分Aに巻込み
が発生し、まともな肉厚部分を成形することができない
虞れがある。
Therefore, in conventional sheet metal processing, since the entire sheet metal is made of a thick plate, the weight becomes heavy, causing an increase in cost, and processing becomes troublesome. In addition, the material is punched, further drawn and drilled,
After that, it may be possible to form only a part of the wall thickly by upsetting the edges, but as shown in FIGS. 4(m) and (b), If the part 1a is held in line with the die 2 and the upsetting punch 3 is moved in the direction of the arrow in this state, buckling and entrainment will occur in the partition part A, making it impossible to form a properly thick part. There is a risk.

【問題点を解決するための手段】[Means to solve the problem]

本発明は上述の問題点を解消することを目的とするもの
であり、ブランク縁部をその内側面にて押えポンチに整
合し、かつブランク縁部外側面とダイスとの間に所定隙
間を形成し、押えポンチとダイスとの間でブランクを挟
持、固定した状態で、ダイスと押えポンチとの間の環状
空間に据込み用ポンチを嵌入し、ブランク縁部の金属材
料を外方に向けて流して環状空間を埋めるように圧縮成
形することを特徴としたブランク縁部を肉厚にする板金
プレス加工法にある。 また、本発明は、ブランク縁部の外側面との間。 に所定隙間を有するダイス、ブランクの内側面と整合す
る押えポンチ、及びダイスと押えポンチとの間の環状空
間に嵌入し得る据込み用ポンチからなり、ポンチ保持具
に据込み用ポンチを固定し、またポンチ保持具に固定し
たロッド部に押えポンチを摺動自在に嵌挿すると共に、
該押えポンチとポンチ保持具との間にスプリングを縮設
して構成したプレス装置にある。
The present invention is aimed at solving the above-mentioned problems, and involves aligning the edge of the blank with the presser punch on its inner surface, and forming a predetermined gap between the outer surface of the blank edge and the die. Then, with the blank held and fixed between the presser punch and the die, insert the upsetting punch into the annular space between the die and the presser punch, and turn the metal material on the edge of the blank outward. It is a sheet metal press working method that thickens the edge of a blank, which is characterized by compression molding by flowing and filling an annular space. Additionally, the present invention provides a method for forming a blank edge between the outer surface and the blank edge. It consists of a die having a predetermined gap between the blanks, a presser punch that aligns with the inner surface of the blank, and an upsetting punch that can be fitted into the annular space between the die and the presser punch, and the upsetting punch is fixed to the punch holder. In addition, the presser punch is slidably inserted into the rod part fixed to the punch holder, and
The press device has a spring compressed between the presser punch and the punch holder.

【実 施 例】【Example】

以下、図面に沿って、本発明による実施例について説明
する。 プレス装置10は、第2図に示すように、ダイス11、
押えポンチ12及び据込みポンチ13かうなる。 ダイス11及び押えポンチ12はブランク15の外型及
び内型を形成するように略々相似形状からなるが、ブラ
ンク15の縁部15aに対応する位置にて、押えポンチ
12がブランク15の内側面に整合しているのに対し、
ダイス11は成縮成形後の部材15′の肉厚部15−a
に一致すベく(第3図O参照)、ブランク縁部15aの
外側面と所定隙間dが構成されていると共に、その隅部
Cのアール形状が大きく構成されている。また、押えポ
ンチ12は当て板を構成する段付き部材16のロッド部
16aに摺動自在に嵌挿されており、かつロッド部16
aに螺着されたナツト17により抜止めされていると共
に、段付き部材1Gとの間に所定圧縮力からなるスプリ
ング19が縮設されている。更に、段付き部材16の段
付き部16bには環状の据込みポンチ13が嵌合、配置
されており、該据込みポンチ13はその根本部13aが
テーバ状に形成され、テーバ内径を有する締付はナツト
20により、段付き部材1Gと共にポンチ保持具21に
取付けられている。また、据込みポンチ13の先端部は
前記押えポンチ12とダイス11とにより形成される環
状の空間Sに嵌入し得、更にその先端平面13bは該平
面に垂直な線が内方を向くように、即ちブランク縁部1
5aの肉厚が巻込み等の欠陥がなく、且つ厚くなるよう
に、テーバ面にて構成された方が成形上有利である。 そして、第3図に示すように、所定厚さからなる薄板材
を円形に打抜いたブランク151に(へ)、絞り加工し
て所定ピストン形状151を構成しく口)、更に孔抜き
加工して軸との嵌合、固定部を形成したブランク15を
構成する(C)。この状態で、前記プレス装置10のダ
イス11にブランク15を載置し、ポンチ側を下降する
。すると、まず、第1図(2)に示すように、押えポン
チ12がブランク15の内側面と整合し、更にポンチ保
持具21が下降することによりスプリング19が圧縮さ
れて、押えポンチ12はダイス11との間でブランク1
5を挟持、固定する。そして、ロッド部16aが押えポ
ンチ12に対して摺動しながら更にポンチ側が下降する
と、第1図(ロ)に示すように、据込みポンチ13が環
状空間Sに嵌入し、その先端平面13bがブランク縁部
15aに当接、押圧して、該縁部15aをそのメタルフ
ローが外径方向に向くように圧縮成形する。これにより
、該ブランク縁部15aは隅部Cの大きなアール形状に
沿って環状空間Sを埋めるように、滑らかに圧縮成形さ
れ、肉厚部15−aを形成する。そして、第3図(Φに
示すように、該肉厚部15−aにOリング用の溝22が
機構加工されて、所定製品部材15′が形成される。 なお、上述の実施例は、絞り工程等と別工程にて圧縮成
形を行ったが、押えポンチ12にて絞り加工を行い、1
工程にて圧縮成形と絞り等を行うことも可能である。 【発明の効果] 以上説明したように、本発明に係る板金プレス加工法に
よると、ブランク15の縁部15aのみ肉厚に成形する
ことができるので、不必要な厚板を用いなくてよく、重
量を軽減できると共に大幅なコストダウンを図ることが
でき、更に薄板の板金加工で足りるため、加工も容易と
なる。また、ブランク縁部15aを、内型を構成する押
えポンチ12に整合し、ダイス11と押えポンチ12ど
の間の環状空間Sに据込みポンチ13を嵌入し、ブラン
ク縁部15の金属材料を外方に向けて流して環状空間S
を埋めるように圧縮成形するので、座屈及び巻込みの発
生を防止でき、確実に肉厚部15′aを成形することが
できる。 また、本発明に係るプレス装置10によると、ポンチ保
持具21に据込みポンチ13を固定し、またポンチ保持
具21に固定したロッド部16aに押えポンチ12を摺
動自在に吹拝すると共に、該押えポンチ12と段付き部
材1Gとの闇にスプリング19を縮設してなるので、ま
ず押えポンチ12にてブランク15を挟持、固定し、つ
いで該ブランク15を確実に保持した状態で据込みポン
チ13により圧縮成形を行え、容易かつ確実に板厚増加
を伴う板金プレス加工を行うことができる。更に、押え
ポンチ12がブランク15に整合するので、ブランク1
5の形状を正確に成形することができ、更に先行する押
えポンチ12により絞り等の加工も同時に行うことも可
能である。
Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the press device 10 includes a die 11,
The presser punch 12 and the upsetting punch 13 roar. The die 11 and the presser punch 12 have substantially similar shapes so as to form the outer and inner shapes of the blank 15, but the presser punch 12 touches the inner surface of the blank 15 at a position corresponding to the edge 15a of the blank 15. While it is consistent with
The die 11 is a thick part 15-a of the member 15' after compression molding.
In accordance with (see FIG. 3 O), a predetermined gap d is formed between the outer surface of the blank edge 15a and the corner C has a large rounded shape. Further, the presser punch 12 is slidably inserted into the rod portion 16a of the stepped member 16 that constitutes the backing plate, and the rod portion 16
It is prevented from coming off by a nut 17 screwed onto a, and a spring 19 having a predetermined compressive force is compressed between it and the stepped member 1G. Furthermore, an annular upsetting punch 13 is fitted and disposed in the stepped portion 16b of the stepped member 16, and the upsetting punch 13 has a tapered base portion 13a and is a fastener having a tapered inner diameter. It is attached to the punch holder 21 together with the stepped member 1G by a nut 20. Further, the tip of the upsetting punch 13 can fit into the annular space S formed by the presser punch 12 and the die 11, and the tip plane 13b is arranged such that a line perpendicular to the plane faces inward. , i.e. blank edge 1
It is advantageous in terms of molding to form the tapered surface so that the wall thickness of 5a is thick and free from defects such as curling. Then, as shown in FIG. 3, a blank 151 made by punching a thin plate material of a predetermined thickness into a circular shape is drawn to form a predetermined piston shape 151, and then a hole is punched. A blank 15 with a fitting and fixing part formed on the shaft is constructed (C). In this state, the blank 15 is placed on the die 11 of the press device 10, and the punch side is lowered. Then, as shown in FIG. 1(2), the presser punch 12 is aligned with the inner surface of the blank 15, and the punch holder 21 is further lowered to compress the spring 19, and the presser punch 12 is pressed against the die. Blank 1 between 11 and 11
Clamp and fix 5. Then, as the rod portion 16a slides against the presser punch 12 and the punch side further descends, the upsetting punch 13 fits into the annular space S, and its tip plane 13b By contacting and pressing the blank edge 15a, the edge 15a is compression-molded so that the metal flow is directed toward the outer diameter direction. Thereby, the blank edge 15a is smoothly compression-molded so as to fill the annular space S along the large radiused shape of the corner C, thereby forming a thick portion 15-a. Then, as shown in FIG. 3 (Φ), a groove 22 for an O-ring is machined in the thick portion 15-a to form a predetermined product member 15'. Compression molding was performed in a separate process from the drawing process, etc., but the drawing process was performed with a presser punch 12, and 1
It is also possible to perform compression molding, drawing, etc. in the process. Effects of the Invention As explained above, according to the sheet metal pressing method according to the present invention, only the edge 15a of the blank 15 can be formed thickly, so there is no need to use unnecessary thick plates. It is possible to reduce the weight and achieve a significant cost reduction, and furthermore, processing is facilitated because processing of thin sheet metal is sufficient. Further, the blank edge 15a is aligned with the presser punch 12 constituting the inner mold, and the upsetting punch 13 is inserted into the annular space S between the die 11 and the presser punch 12 to remove the metal material of the blank edge 15. Flowing towards the annular space S
Since the compression molding is performed so as to fill the area, buckling and curling can be prevented, and the thick portion 15'a can be reliably molded. Further, according to the press device 10 according to the present invention, the upsetting punch 13 is fixed to the punch holder 21, and the presser punch 12 is slidably blown onto the rod portion 16a fixed to the punch holder 21, and Since a spring 19 is compressed between the presser punch 12 and the stepped member 1G, the blank 15 is first clamped and fixed by the presser punch 12, and then the blank 15 is securely held and upturned. Compression molding can be performed using the punch 13, and sheet metal press working that increases the thickness of the sheet metal can be performed easily and reliably. Furthermore, since the presser punch 12 is aligned with the blank 15, the blank 1
5 can be formed accurately, and furthermore, it is also possible to perform processing such as drawing at the same time using the preceding presser punch 12.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明に係る板金プレス加工法を示すもので、
(支)は据込みポンチによる加工前、(b)は加工状態
を示す断面図、第2図は本発明に係るプレス装置を示す
断面図、第3図(2)〜(ロ)は本発明により加工され
る部材のそれぞれ異なる状態を示す図、′第4図は本発
明と対比される得る板金プレス加工法を示すもので、(
2)は加工酷、Φ〉は加工状態を示す断面図である。 10・・・プレス装置、11・・・ダイス、12・・・
押えポンチ13・・・据込みポンチ、15・・・ブラン
ク、15a・・・縁部、16・・・段イ1き部材、18
a・・・ロッド部、19・・・スプリング、20・・・
締付はナツト、21・・・ポンチ保持具、d・・・隙間
、S・・・環状空間、15′a・・・肉厚部。 第1図 1〕 1= 第2図 第3 (C) 第4 因 (b)
FIG. 1 shows the sheet metal press working method according to the present invention.
(b) is a sectional view showing the processing state before processing with an upsetting punch, FIG. 2 is a sectional view showing the press device according to the present invention, and FIGS. 3 (2) to (b) are the invention Figure 4 shows a sheet metal press working method that can be compared with the present invention.
2) is a cross-sectional view showing severe processing, and Φ〉 is a processing state. 10...Press device, 11...Dice, 12...
Presser punch 13...Upsetting punch, 15...Blank, 15a...Edge, 16...Step A1 member, 18
a...Rod part, 19...Spring, 20...
Tighten with a nut, 21... Punch holder, d... Gap, S... Annular space, 15'a... Thick part. Figure 1 1] 1 = Figure 2 3 (C) 4th factor (b)

Claims (2)

【特許請求の範囲】[Claims] (1)絞り加工により成形されたブランクの縁部を圧縮
成形するプレス加工法において、 ブランク縁部の外側面と間に所定隙間を有するダイスと
、ブランクの内側面と整合する押えポンチとの間でブラ
ンクを挟持、固定し、この状態で、ダイスと押えポンチ
との間の環状空間に据込み用ポンチを嵌入し、ブランク
縁部の金属材料を外方に向けて流して前記環状空間を埋
めるように圧縮成形することを特徴とした板厚増加を伴
う板金プレス加工法。
(1) In the press method of compression molding the edge of a blank formed by drawing, between a die having a predetermined gap between the outer surface of the blank edge and a presser punch aligned with the inner surface of the blank. The blank is clamped and fixed, and in this state, an upsetting punch is inserted into the annular space between the die and the presser punch, and the metal material at the edge of the blank is flowed outward to fill the annular space. A sheet metal press processing method that involves compression molding that increases the thickness of the sheet metal.
(2)ブランク縁部の外側面との間に所定隙間を有する
ダイス、ブランクの内側面と整合する押えポンチ、及び
ダイスと押えポンチとの間の環状空間に嵌入し得る据込
み用ポンチからなり、ポンチ保持具に据込み用ポンチを
固定し、またポンチ保持具に固定したロッド部に押えポ
ンチを摺動自在に嵌挿すると共に、該押えポンチとポン
チ保持具との間にスプリングを縮設して構成したプレス
装置。
(2) Consists of a die having a predetermined gap between it and the outer surface of the blank edge, a presser punch that aligns with the inner surface of the blank, and an upsetting punch that can fit into the annular space between the die and the presser punch. , an upsetting punch is fixed to a punch holder, a presser punch is slidably inserted into a rod portion fixed to the punch holder, and a spring is compressed between the presser punch and the punch holder. A press device configured with
JP59263552A 1984-12-13 1984-12-13 Press working method of sheet metal accompanied with sheet-thickness increase and its device Granted JPS61140327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59263552A JPS61140327A (en) 1984-12-13 1984-12-13 Press working method of sheet metal accompanied with sheet-thickness increase and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59263552A JPS61140327A (en) 1984-12-13 1984-12-13 Press working method of sheet metal accompanied with sheet-thickness increase and its device

Publications (2)

Publication Number Publication Date
JPS61140327A true JPS61140327A (en) 1986-06-27
JPH0555208B2 JPH0555208B2 (en) 1993-08-16

Family

ID=17391129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59263552A Granted JPS61140327A (en) 1984-12-13 1984-12-13 Press working method of sheet metal accompanied with sheet-thickness increase and its device

Country Status (1)

Country Link
JP (1) JPS61140327A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001049431A1 (en) * 2000-01-05 2001-07-12 Kim Choong Yul Production method of multi-gauge strips
CN110038995A (en) * 2019-04-11 2019-07-23 柳州市龙杰汽车配件有限责任公司 CVT speed changer driven pulley piston multistation forming technology

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS549153A (en) * 1977-06-23 1979-01-23 Mitsuboshi Seisakusho Method of making stairinggheaddpipe
JPS58103902A (en) * 1981-12-14 1983-06-21 Kawasaki Steel Corp Working method for tubular body

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS549153A (en) * 1977-06-23 1979-01-23 Mitsuboshi Seisakusho Method of making stairinggheaddpipe
JPS58103902A (en) * 1981-12-14 1983-06-21 Kawasaki Steel Corp Working method for tubular body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001049431A1 (en) * 2000-01-05 2001-07-12 Kim Choong Yul Production method of multi-gauge strips
CN110038995A (en) * 2019-04-11 2019-07-23 柳州市龙杰汽车配件有限责任公司 CVT speed changer driven pulley piston multistation forming technology

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